1
|
Mertens A, Arnold BF, Benjamin-Chung J, Boehm AB, Brown J, Capone D, Clasen T, Fuhrmeister ER, Grembi JA, Holcomb D, Knee J, Kwong LH, Lin A, Luby SP, Nala R, Nelson K, Njenga SM, Null C, Pickering AJ, Rahman M, Reese HE, Steinbaum L, Stewart JR, Thilakaratne R, Cumming O, Colford JM, Ercumen A. Is detection of enteropathogens and human or animal faecal markers in the environment associated with subsequent child enteric infections and growth: an individual participant data meta-analysis. Lancet Glob Health 2024; 12:e433-e444. [PMID: 38365415 PMCID: PMC10882208 DOI: 10.1016/s2214-109x(23)00563-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2023] [Revised: 11/13/2023] [Accepted: 11/28/2023] [Indexed: 02/18/2024]
Abstract
BACKGROUND Quantifying contributions of environmental faecal contamination to child diarrhoea and growth faltering can illuminate causal mechanisms behind modest health benefits in recent water, sanitation, and hygiene (WASH) trials. We aimed to assess associations between environmental detection of enteropathogens and human or animal microbial source tracking markers (MSTM) and subsequent child health outcomes. METHODS In this individual participant data meta-analysis we searched we searched PubMed, Embase, CAB Direct Global Health, Agricultural and Environmental Science Database, Web of Science, and Scopus for WASH intervention studies with a prospective design and concurrent control that measured enteropathogens or MSTM in environmental samples, or both, and subsequently measured enteric infections, diarrhoea, or height-for-age Z-scores (HAZ) in children younger than 5 years. We excluded studies that only measured faecal indicator bacteria. The initial search was done on Jan 19, 2021, and updated on March 22, 2023. One reviewer (AM) screened abstracts, and two independent reviewers (AM and RT) examined the full texts of short-listed articles. All included studies include at least one author that also contributed as an author to the present Article. Our primary outcomes were the 7-day prevalence of caregiver-reported diarrhoea and HAZ in children. For specific enteropathogens in the environment, primary outcomes also included subsequent child infection with the same pathogen ascertained by stool testing. We estimated associations using covariate-adjusted regressions and pooled estimates across studies. FINDINGS Data from nine published reports from five interventions studies, which included 8603 children (4302 girls and 4301 boys), were included in the meta-analysis. Environmental pathogen detection was associated with increased infection prevalence with the same pathogen and lower HAZ (ΔHAZ -0·09 [95% CI -0·17 to -0·01]) but not diarrhoea (prevalence ratio 1·22 [95% CI 0·95 to 1·58]), except during wet seasons. Detection of MSTM was not associated with diarrhoea (no pooled estimate) or HAZ (ΔHAZ -0·01 [-0·13 to 0·11] for human markers and ΔHAZ -0·02 [-0·24 to 0·21] for animal markers). Soil, children's hands, and stored drinking water were major transmission pathways. INTERPRETATION Our findings support a causal chain from pathogens in the environment to infection to growth faltering, indicating that the lack of WASH intervention effects on child growth might stem from insufficient reductions in environmental pathogen prevalence. Studies measuring enteropathogens in the environment should subsequently measure the same pathogens in stool to further examine theories of change between WASH, faecal contamination, and health. Given that environmental pathogen detection was predictive of infection, programmes targeting specific pathogens (eg, vaccinations and elimination efforts) can environmentally monitor the pathogens of interest for population-level surveillance instead of collecting individual biospecimens. FUNDING The Bill & Melinda Gates Foundation and the UK Foreign and Commonwealth Development Office.
Collapse
Affiliation(s)
- Andrew Mertens
- Division of Epidemiology, University of California, Berkeley, CA, USA; Division of Biostatistics, University of California, Berkeley, CA, USA.
| | - Benjamin F Arnold
- Francis I Proctor Foundation and Department of Ophthalmology, University of California, San Francisco, CA, USA
| | - Jade Benjamin-Chung
- Department of Epidemiology and Population Health, Stanford University, Stanford, CA, USA
| | - Alexandria B Boehm
- Department of Civil and Environmental Engineering, Stanford University, Stanford, CA, USA
| | - Joe Brown
- Department of Environmental Science and Engineering, University of North Carolina, Gillings School of Global Public Health, Michael Hooker Research Center, Chapel Hill, NC, USA
| | - Drew Capone
- Department of Environmental and Occupational Health, Indiana University, Bloomington, IN, USA
| | - Thomas Clasen
- Department of Environmental Health, Rollins School of Public Health, Emory University, Atlanta, GA, USA
| | - Erica R Fuhrmeister
- Department of Environmental & Occupational Health Sciences, University of Washington, Seattle, WA, USA
| | | | - David Holcomb
- Department of Environmental Science and Engineering, University of North Carolina, Gillings School of Global Public Health, Michael Hooker Research Center, Chapel Hill, NC, USA
| | - Jackie Knee
- Department of Disease Control, London School of Tropical Medicine & Hygiene, London, UK
| | - Laura H Kwong
- Division of Environmental Health Sciences, University of California, Berkeley, CA, USA
| | - Audrie Lin
- Department of Microbiology and Environmental Toxicology, University of California, Santa Cruz, CA, USA
| | - Stephen P Luby
- Division of Infectious Diseases and Geographic Medicine, Stanford University, Stanford, CA, USA
| | - Rassul Nala
- Ministério da Saúde, Instituto Nacional de Saúde Maputo, Maputo, Mozambique
| | - Kara Nelson
- Department of Civil and Environmental Engineering, College of Engineering, University of California, Berkeley, CA, USA
| | | | | | - Amy J Pickering
- Department of Civil and Environmental Engineering, College of Engineering, University of California, Berkeley, CA, USA
| | - Mahbubur Rahman
- Environmental Interventions Unit, Infectious Diseases Division, Dhaka, Bangladesh
| | - Heather E Reese
- Department of Environmental Health, Rollins School of Public Health, Emory University, Atlanta, GA, USA
| | - Lauren Steinbaum
- California Department of Toxic Substances Control, Sacramento, CA, USA
| | - Jill R Stewart
- Department of Environmental Science and Engineering, University of North Carolina, Gillings School of Global Public Health, Michael Hooker Research Center, Chapel Hill, NC, USA
| | | | - Oliver Cumming
- Department of Disease Control, London School of Tropical Medicine & Hygiene, London, UK
| | - John M Colford
- Division of Epidemiology, University of California, Berkeley, CA, USA
| | - Ayse Ercumen
- Department of Forestry and Environmental Resources, North Carolina State University, Raleigh, NC, USA
| |
Collapse
|
2
|
Espira LM, Gessese B, Kassa BA, Wu CC, Riley J, Bedru S, Sahilu G, Desta A, Baye K, Jones AD, Love NG, Eisenberg JNS. Multiscalar Evaluation of the Water Distribution System and Diarrheal Disease Risk in Addis Ababa, Ethiopia. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2023; 57:13313-13324. [PMID: 37642551 PMCID: PMC10501120 DOI: 10.1021/acs.est.2c08976] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Revised: 07/22/2023] [Accepted: 07/24/2023] [Indexed: 08/31/2023]
Abstract
Despite growing urbanization, our understanding of the impacts of water and sanitation on human health has largely come from studies in rural sectors. To this end, we collected data at both regional (water quality measures from water treatment systems) and community (cross-sectional surveys) scales to examine determinants of enteric pathogen infection and diarrheal disease among infants in Addis Ababa, Ethiopia. Regionally, the Legedadi water treatment plant had significantly lower heterotrophic plate counts, total coliform counts, and fecal coliform counts compared with the Gefersa water treatment plant. The number of pathogen types in infant stool also differed by plant. Decreases in chlorine levels and increases in the relative abundance of Gammaproteobacteria with distance from treatment plants suggest a compromised water distribution system. In communities, infants in households that obtained water from yard pipes or public taps had significantly lower odds of diarrhea compared to households that had water piped into their dwellings (OR = 0.35, 95% CI 0.16, 0.76, and OR = 0.39, 95% CI 0.15, 1.00, respectively). Similarly, infants in households that boiled or filtered water had significantly lower odds of diarrhea compared to households that did not treat water (OR = 0.40, 95% CI 0.19, 0.86 and OR = 0.23, 95% CI 0.06, 0.84, respectively). Integrating multiscalar data better informs the health impacts of water in urban settings.
Collapse
Affiliation(s)
- Leon M. Espira
- Department
of Epidemiology, University of Michigan
School of Public Health, Ann Arbor, Michigan 48109, United States
| | - Brook Gessese
- Ethiopian
Institute of Water Resources, Addis Ababa
University, Addis
Ababa 150461, Ethiopia
| | - Bayable A. Kassa
- Institute
of Biotechnology, Addis Ababa University, Addis Ababa 1176, Ethiopia
| | - Chia-Chen Wu
- Institute
of Environmental Engineering, National Yang
Ming Chiao Tung University, Hsinchu City 30010, Taiwan
| | - Joshua Riley
- Department
of Civil and Environmental Engineering, University of Michigan, Ann Arbor, Michigan 48109, United States
| | - Seifedin Bedru
- School of
Civil and Environmental Engineering, Addis
Ababa University, Addis Ababa 1176, Ethiopia
| | - Geremew Sahilu
- School of
Civil and Environmental Engineering, Addis
Ababa University, Addis Ababa 1176, Ethiopia
| | - Adey Desta
- Department
of Microbial and Cellular Biology, Addis
Ababa University, Addis Ababa 1176, Ethiopia
| | - Kaleab Baye
- Center
for
Food Science and Nutrition, College of Natural and Computational Sciences, Addis Ababa University, Addis Ababa 1176, Ethiopia
| | - Andrew D. Jones
- Department
of Nutritional Sciences, University of Michigan
School of Public Health, Ann Arbor, Michigan 48109, United States
| | - Nancy G. Love
- Department
of Civil and Environmental Engineering, University of Michigan, Ann Arbor, Michigan 48109, United States
| | - Joseph N. S. Eisenberg
- Department
of Epidemiology, University of Michigan
School of Public Health, Ann Arbor, Michigan 48109, United States
| |
Collapse
|
3
|
Amato HK, Loayza F, Salinas L, Paredes D, García D, Sarzosa S, Saraiva-Garcia C, Johnson TJ, Pickering AJ, Riley LW, Trueba G, Graham JP. Leveraging the COVID-19 pandemic as a natural experiment to assess changes in antibiotic use and antibiotic-resistant E. coli carriage in semi-rural Ecuador. Sci Rep 2023; 13:14854. [PMID: 37684276 PMCID: PMC10491794 DOI: 10.1038/s41598-023-39532-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2023] [Accepted: 07/26/2023] [Indexed: 09/10/2023] Open
Abstract
The coronavirus 2019 (COVID-19) pandemic has had significant impacts on health systems, population dynamics, public health awareness, and antibiotic stewardship, which could affect antibiotic resistant bacteria (ARB) emergence and transmission. In this study, we aimed to compare knowledge, attitudes, and practices (KAP) of antibiotic use and ARB carriage in Ecuadorian communities before versus after the COVID-19 pandemic began. We leveraged data collected for a repeated measures observational study of third-generation cephalosporin-resistant E. coli (3GCR-EC) carriage among children in semi-rural communities in Quito, Ecuador between July 2018 and September 2021. We included 241 households that participated in surveys and child stool sample collection in 2019, before the pandemic, and in 2021, after the pandemic began. We estimated adjusted Prevalence Ratios (aPR) and 95% Confidence Intervals (CI) using logistic and Poisson regression models. Child antibiotic use in the last 3 months declined from 17% pre-pandemic to 5% in 2021 (aPR: 0.30; 95% CI 0.15, 0.61) and 3GCR-EC carriage among children declined from 40 to 23% (aPR: 0.48; 95% CI 0.32, 0.73). Multi-drug resistance declined from 86 to 70% (aPR: 0.32; 95% CI 0.13; 0.79), the average number of antibiotic resistance genes (ARGs) per 3GCR-EC isolate declined from 9.9 to 7.8 (aPR of 0.79; 95% CI 0.65, 0.96), and the diversity of ARGs was lower in 2021. In the context of Ecuador, where COVID-19 prevention and control measures were strictly enforced after its major cities experienced some of the world's the highest mortality rates from SARS-CoV-2 infections, antibiotic use and ARB carriage declined in semi-rural communities of Quito from 2019 to 2021.
Collapse
Affiliation(s)
- Heather K Amato
- Environmental Health Sciences Division, School of Public Health, University of California, Berkeley, CA, USA.
- Department of Civil and Environmental Engineering, University of California, Berkeley, CA, USA.
| | - Fernanda Loayza
- Instituto de Microbiología, Colegio de Ciencias Biológicas y Ambientales, Universidad San Francisco de Quito, Quito, Pichincha, Ecuador
| | - Liseth Salinas
- Instituto de Microbiología, Colegio de Ciencias Biológicas y Ambientales, Universidad San Francisco de Quito, Quito, Pichincha, Ecuador
| | - Diana Paredes
- Instituto de Microbiología, Colegio de Ciencias Biológicas y Ambientales, Universidad San Francisco de Quito, Quito, Pichincha, Ecuador
| | - Daniela García
- Instituto de Microbiología, Colegio de Ciencias Biológicas y Ambientales, Universidad San Francisco de Quito, Quito, Pichincha, Ecuador
| | - Soledad Sarzosa
- Instituto de Microbiología, Colegio de Ciencias Biológicas y Ambientales, Universidad San Francisco de Quito, Quito, Pichincha, Ecuador
| | - Carlos Saraiva-Garcia
- Instituto de Microbiología, Colegio de Ciencias Biológicas y Ambientales, Universidad San Francisco de Quito, Quito, Pichincha, Ecuador
| | - Timothy J Johnson
- Department of Veterinary and Biomedical Sciences, University of Minnesota, Saint Paul, MN, USA
| | - Amy J Pickering
- Department of Civil and Environmental Engineering, University of California, Berkeley, CA, USA
- Blum Center for Developing Economies, University of California, Berkeley, CA, USA
- Chan Zuckerberg Biohub, San Francisco, CA, USA
| | - Lee W Riley
- Division of Infectious Diseases and Vaccinology, School of Public Health, University of California, Berkeley, CA, 94720, USA
| | - Gabriel Trueba
- Instituto de Microbiología, Colegio de Ciencias Biológicas y Ambientales, Universidad San Francisco de Quito, Quito, Pichincha, Ecuador
| | - Jay P Graham
- Environmental Health Sciences Division, School of Public Health, University of California, Berkeley, CA, USA
| |
Collapse
|
4
|
Holcomb DA, Monteiro V, Capone D, António V, Chiluvane M, Cumbane V, Ismael N, Knee J, Kowalsky E, Lai A, Linden Y, Mataveia E, Nala R, Rao G, Ribeiro J, Cumming O, Viegas E, Brown J. Long-term impacts of an urban sanitation intervention on enteric pathogens in children in Maputo city, Mozambique: study protocol for a cross-sectional follow-up to the Maputo Sanitation (MapSan) trial 5 years postintervention. BMJ Open 2023; 13:e067941. [PMID: 37290945 PMCID: PMC10254709 DOI: 10.1136/bmjopen-2022-067941] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/31/2022] [Accepted: 05/24/2023] [Indexed: 06/10/2023] Open
Abstract
INTRODUCTION We previously assessed the effect of an onsite sanitation intervention in informal neighbourhoods of urban Maputo, Mozambique on enteric pathogen detection in children after 2 years of follow-up (Maputo Sanitation (MapSan) trial, ClinicalTrials.gov: NCT02362932). We found significant reductions in Shigella and Trichuris prevalence but only among children born after the intervention was delivered. In this study, we assess the health impacts of the sanitation intervention after 5 years among children born into study households postintervention. METHODS AND ANALYSIS We are conducting a cross-sectional household study of enteric pathogen detection in child stool and the environment at compounds (household clusters sharing sanitation and outdoor living space) that received the pour-flush toilet and septic tank intervention at least 5 years prior or meet the original criteria for trial control sites. We are enrolling at least 400 children (ages 29 days to 60 months) in each treatment arm. Our primary outcome is the prevalence of 22 bacterial, protozoan, and soil transmitted helminth enteric pathogens in child stool using the pooled prevalence ratio across the outcome set to assess the overall intervention effect. Secondary outcomes include the individual pathogen detection prevalence and gene copy density of 27 enteric pathogens (including viruses); mean height-for-age, weight-for-age, and weight-for-height z-scores; prevalence of stunting, underweight, and wasting; and the 7-day period prevalence of caregiver-reported diarrhoea. All analyses are adjusted for prespecified covariates and examined for effect measure modification by age. Environmental samples from study households and the public domain are assessed for pathogens and faecal indicators to explore environmental exposures and monitor disease transmission. ETHICS AND DISSEMINATION Study protocols have been reviewed and approved by human subjects review boards at the Ministry of Health, Republic of Mozambique and the University of North Carolina at Chapel Hill. Deidentified study data will be deposited at https://osf.io/e7pvk/. TRIAL REGISTRATION NUMBER ISRCTN86084138.
Collapse
Affiliation(s)
- David A Holcomb
- Department of Environmental Sciences and Engineering, Gillings School of Global Public Health, University of North Carolina, Chapel Hill, North Carolina, USA
- Department of Epidemiology, Gillings School of Global Public Health, University of North Carolina, Chapel Hill, North Carolina, USA
| | - Vanessa Monteiro
- Centro de Investigação e Treino em Saúde da Polana Caniço, Instituto Nacional de Saúde, Maputo, Mozambique
| | - Drew Capone
- Department of Environmental and Occupational Health, School of Public Health, Indiana University, Bloomington, Indiana, USA
| | - Virgílio António
- Division of Biotechnology and Genetics, Instituto Nacional de Saúde, Marracuene, Mozambique
| | - Márcia Chiluvane
- Centro de Investigação e Treino em Saúde da Polana Caniço, Instituto Nacional de Saúde, Maputo, Mozambique
| | - Victória Cumbane
- Centro de Investigação e Treino em Saúde da Polana Caniço, Instituto Nacional de Saúde, Maputo, Mozambique
| | - Nália Ismael
- Division of Biotechnology and Genetics, Instituto Nacional de Saúde, Marracuene, Mozambique
| | - Jackie Knee
- Department of Disease Control, Faculty of Infectious and Tropical Diseases, London School of Hygiene and Tropical Medicine, London, UK
| | - Erin Kowalsky
- Department of Environmental Sciences and Engineering, Gillings School of Global Public Health, University of North Carolina, Chapel Hill, North Carolina, USA
| | - Amanda Lai
- Department of Environmental Sciences and Engineering, Gillings School of Global Public Health, University of North Carolina, Chapel Hill, North Carolina, USA
| | - Yarrow Linden
- Department of Environmental Sciences and Engineering, Gillings School of Global Public Health, University of North Carolina, Chapel Hill, North Carolina, USA
| | - Elly Mataveia
- Centro de Investigação e Treino em Saúde da Polana Caniço, Instituto Nacional de Saúde, Maputo, Mozambique
| | - Rassul Nala
- Division of Parasitology, Instituto Nacional de Saúde, Maputo, Mozambique
| | - Gouthami Rao
- Department of Environmental Sciences and Engineering, Gillings School of Global Public Health, University of North Carolina, Chapel Hill, North Carolina, USA
| | - Jorge Ribeiro
- Centro de Investigação e Treino em Saúde da Polana Caniço, Instituto Nacional de Saúde, Maputo, Mozambique
| | - Oliver Cumming
- Department of Disease Control, Faculty of Infectious and Tropical Diseases, London School of Hygiene and Tropical Medicine, London, UK
| | - Edna Viegas
- Centro de Investigação e Treino em Saúde da Polana Caniço, Instituto Nacional de Saúde, Maputo, Mozambique
| | - Joe Brown
- Department of Environmental Sciences and Engineering, Gillings School of Global Public Health, University of North Carolina, Chapel Hill, North Carolina, USA
| |
Collapse
|
5
|
Pessoa Colombo V, Chenal J, Orina F, Meme H, Koffi JDA, Koné B, Utzinger J. Environmental determinants of access to shared sanitation in informal settlements: a cross-sectional study in Abidjan and Nairobi. Infect Dis Poverty 2023; 12:34. [PMID: 37038238 PMCID: PMC10084626 DOI: 10.1186/s40249-023-01078-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2023] [Accepted: 03/10/2023] [Indexed: 04/12/2023] Open
Abstract
BACKGROUND Universal access to basic sanitation remains a global challenge, particularly in low- and middle-income countries. Efforts are underway to improve access to sanitation in informal settlements, often through shared facilities. However, access to these facilities and their potential health gains-notably, the prevention of diarrheal diseases-may be hampered by contextual aspects related to the physical environment. This study explored associations between the built environment and perceived safety to access toilets, and associations between the latter and diarrheal infections. METHODS A cross-sectional study was carried out between July 2021 and February 2022, including 1714 households in two informal settlements in Abidjan (Côte d'Ivoire) and two in Nairobi (Kenya). We employed adjusted odds ratios (aORs) obtained from multiple logistic regressions (MLRs) to test whether the location of the most frequently used toilet was associated with a perceived lack of safety to use the facility at any time, and whether this perceived insecurity was associated with a higher risk of diarrhea. The MLRs included several exposure and control variables, being stratified by city and age groups. We employed bivariate logistic regressions to test whether the perceived insecurity was associated with settlement morphology indicators derived from the built environment. RESULTS Using a toilet outside the premises was associated with a perceived insecurity both in Abidjan [aOR = 3.14, 95% confidence interval (CI): 1.13-8.70] and in Nairobi (aOR = 57.97, 95% CI: 35.93-93.53). Perceived insecurity to access toilets was associated with diarrheal infections in the general population (aOR = 1.90, 95% CI: 1.29-2.79 in Abidjan, aOR = 1.69, 95% CI: 1.22-2.34 in Nairobi), but not in children below the age of 5 years. Several settlement morphology features were associated with perceived insecurity, namely, buildings' compactness, the proportion of occupied land, and angular deviation between neighboring structures. CONCLUSIONS Toilet location was a critical determinant of perceived security, and hence, must be adequately addressed when building new facilities. The sole availability of facilities may be insufficient to prevent diarrheal infections. People must also be safe to use them. Further attention should be directed toward how the built environment affects safety.
Collapse
Affiliation(s)
| | - Jérôme Chenal
- École Polytechnique Fédérale de Lausanne, Lausanne, Switzerland
- Université Mohammed VI Polytechnique, Ben Guerir, Morocco
| | - Fred Orina
- Kenya Medical Research Institute, Nairobi, Kenya
| | - Hellen Meme
- Kenya Medical Research Institute, Nairobi, Kenya
| | | | - Brama Koné
- Centre Suisse de Recherches Scientifiques en Côte d'Ivoire, Abidjan, Côte d'Ivoire
- Université Péléforo Gon Coulibaly, Korhogo, Côte d'Ivoire
| | - Jürg Utzinger
- Swiss Tropical and Public Health Institute, Allschwil, Switzerland
- University of Basel, Basel, Switzerland
| |
Collapse
|
6
|
Levy K, Garn JV, Cumbe ZA, Muneme B, Fagnant-Sperati CS, Hubbard S, Júnior A, Manuel JL, Mangamela M, McGunegill S, Miller-Petrie MK, Snyder JS, Victor C, Waller LA, Konstantinidis KT, Clasen TF, Brown J, Nalá R, Freeman MC. Study design and rationale for the PAASIM project: a matched cohort study on urban water supply improvements and infant enteric pathogen infection, gut microbiome development and health in Mozambique. BMJ Open 2023; 13:e067341. [PMID: 36863743 PMCID: PMC9990653 DOI: 10.1136/bmjopen-2022-067341] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 03/04/2023] Open
Abstract
INTRODUCTION Despite clear linkages between provision of clean water and improvements in child health, limited information exists about the health impacts of large water infrastructure improvements in low-income settings. Billions of dollars are spent annually to improve urban water supply, and rigorous evaluation of these improvements, especially targeting informal settlements, is critical to guide policy and investment strategies. Objective measures of infection and exposure to pathogens, and measures of gut function, are needed to understand the effectiveness and impact of water supply improvements. METHODS AND ANALYSIS In the PAASIM study, we examine the impact of water system improvements on acute and chronic health outcomes in children in a low-income urban area of Beira, Mozambique, comprising 62 sub-neighbourhoods and ~26 300 households. This prospective matched cohort study follows 548 mother-child dyads from late pregnancy through 12 months of age. Primary outcomes include measures of enteric pathogen infections, gut microbiome composition and source drinking water microbiological quality, measured at the child's 12-month visit. Additional outcomes include diarrhoea prevalence, child growth, previous enteric pathogen exposure, child mortality and various measures of water access and quality. Our analyses will compare (1) subjects living in sub-neighbourhoods with the improved water to those living in sub-neighbourhoods without these improvements; and (2) subjects with household water connections on their premises to those without such a connection. This study will provide critical information to understand how to optimise investments for improving child health, filling the information gap about the impact of piped water provision to low-income urban households, using novel gastrointestinal disease outcomes. ETHICS AND DISSEMINATION This study was approved by the Emory University Institutional Review Board and the National Bio-Ethics Committee for Health in Mozambique. The pre-analysis plan is published on the Open Science Framework platform (https://osf.io/4rkn6/). Results will be shared with relevant stakeholders locally, and through publications.
Collapse
Affiliation(s)
- Karen Levy
- Department of Environmental and Occupational Health Sciences, University of Washington School of Public Health, Seattle, Washington, USA
- Gangarosa Department of Environmental Health, Rollins School of Public Health, Emory University, Atlanta, Georgia, USA
| | - Joshua V Garn
- Division of Biostatistics, Epidemiology and Environmental Health, School of Public Health, University of Nevada Reno, Reno, Nevada, USA
| | | | | | - Christine S Fagnant-Sperati
- Department of Environmental and Occupational Health Sciences, University of Washington School of Public Health, Seattle, Washington, USA
| | - Sydney Hubbard
- Gangarosa Department of Environmental Health, Rollins School of Public Health, Emory University, Atlanta, Georgia, USA
| | | | - João Luís Manuel
- Beira Operations Research Center, National Health Institute (INS), Ministry of Health of Mozambique, Beira, Mozambique
| | | | - Sandy McGunegill
- Gangarosa Department of Environmental Health, Rollins School of Public Health, Emory University, Atlanta, Georgia, USA
| | - Molly K Miller-Petrie
- Department of Environmental and Occupational Health Sciences, University of Washington School of Public Health, Seattle, Washington, USA
| | - Jedidiah S Snyder
- Gangarosa Department of Environmental Health, Rollins School of Public Health, Emory University, Atlanta, Georgia, USA
| | - Courtney Victor
- Gangarosa Department of Environmental Health, Rollins School of Public Health, Emory University, Atlanta, Georgia, USA
| | - Lance A Waller
- Department of Biostatistics and Bioinformatics, Rollins School of Public Health, Emory University, Atlanta, Georgia, USA
| | | | - Thomas F Clasen
- Gangarosa Department of Environmental Health, Rollins School of Public Health, Emory University, Atlanta, Georgia, USA
| | - Joe Brown
- Environmental Science and Engineering, University of North Carolina at Chapel Hill Gillings School of Global Public Health, Chapel Hill, North Carolina, USA
| | - Rassul Nalá
- Ministry of Health, Instituto Nacional de Saúde, Marracuene, Mozambique
| | - Matthew C Freeman
- Gangarosa Department of Environmental Health, Rollins School of Public Health, Emory University, Atlanta, Georgia, USA
| |
Collapse
|
7
|
Contreras JD, Islam M, Mertens A, Pickering AJ, Arnold BF, Benjamin-Chung J, Hubbard AE, Rahman M, Unicomb L, Luby SP, Colford JM, Ercumen A. Evaluation of an on-site sanitation intervention against childhood diarrhea and acute respiratory infection 1 to 3.5 years after implementation: Extended follow-up of a cluster-randomized controlled trial in rural Bangladesh. PLoS Med 2022; 19:e1004041. [PMID: 35939520 PMCID: PMC9394830 DOI: 10.1371/journal.pmed.1004041] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/18/2022] [Revised: 08/22/2022] [Accepted: 06/02/2022] [Indexed: 12/30/2022] Open
Abstract
BACKGROUND Diarrhea and acute respiratory infection (ARI) are leading causes of death in children. The WASH Benefits Bangladesh trial implemented a multicomponent sanitation intervention that led to a 39% reduction in the prevalence of diarrhea among children and a 25% reduction for ARI, measured 1 to 2 years after intervention implementation. We measured longer-term intervention effects on these outcomes between 1 to 3.5 years after intervention implementation, including periods with differing intensity of behavioral promotion. METHODS AND FINDINGS WASH Benefits Bangladesh was a cluster-randomized controlled trial of water, sanitation, hygiene, and nutrition interventions (NCT01590095). The sanitation intervention included provision of or upgrades to improved latrines, sani-scoops for feces removal, children's potties, and in-person behavioral promotion. Promotion was intensive up to 2 years after intervention initiation, decreased in intensity between years 2 to 3, and stopped after 3 years. Access to and reported use of latrines was high in both arms, and latrine quality was significantly improved by the intervention, while use of child feces management tools was low. We enrolled a random subset of households from the sanitation and control arms into a longitudinal substudy, which measured child health with quarterly visits between 1 to 3.5 years after intervention implementation. The study period therefore included approximately 1 year of high-intensity promotion, 1 year of low-intensity promotion, and 6 months with no promotion. We assessed intervention effects on diarrhea and ARI prevalence among children <5 years through intention-to-treat analysis using generalized linear models with robust standard errors. Masking was not possible during data collection, but data analysis was masked. We enrolled 720 households (360 per arm) from the parent trial and made 9,800 child observations between June 2014 and December 2016. Over the entire study period, diarrheal prevalence was lower among children in the sanitation arm (11.9%) compared to the control arm (14.5%) (prevalence ratio [PR] = 0.81, 95% CI 0.66, 1.00, p = 0.05; prevalence difference [PD] = -0.027, 95% CI -0.053, 0, p = 0.05). ARI prevalence did not differ between sanitation (21.3%) and control (22.7%) arms (PR = 0.93, 95% CI 0.82, 1.05, p = 0.23; PD = -0.016, 95% CI -0.043, 0.010, p = 0.23). There were no significant differences in intervention effects between periods with high-intensity versus low-intensity/no promotion. Study limitations include use of caregiver-reported symptoms to define health outcomes and limited data collected after promotion ceased. CONCLUSIONS The observed effect of the WASH Benefits Bangladesh sanitation intervention on diarrhea in children appeared to be sustained for at least 3.5 years after implementation, including 1.5 years after heavy promotion ceased. Existing latrine access was high in the study setting, suggesting that improving on-site latrine quality can deliver health benefits when latrine use practices are in place. Further work is needed to understand how latrine adoption can be achieved and sustained in settings with low existing access and how sanitation programs can adopt transformative approaches of excreta management, including safe disposal of child and animal feces, to generate a hygienic home environment. TRIAL REGISTRATION ClinicalTrials.gov; NCT01590095; https://clinicaltrials.gov/ct2/show/NCT01590095.
Collapse
Affiliation(s)
- Jesse D. Contreras
- Department of Forestry and Environmental Resources, North Carolina State University, Raleigh, North Carolina, United States of America
| | - Mahfuza Islam
- Environmental Interventions Unit, Infectious Disease Division, icddr,b, Dhaka, Bangladesh
| | - Andrew Mertens
- Division of Epidemiology and Biostatistics, School of Public Health, University of California, Berkeley, California, United States of America
| | - Amy J. Pickering
- Department of Civil and Environmental Engineering, University of California, Berkeley, California, United States of America
| | - Benjamin F. Arnold
- Francis I. Proctor Foundation, University of California, San Francisco, California, United States of America
| | - Jade Benjamin-Chung
- Department of Epidemiology and Population Health, Stanford University, Palo Alto, California, United States of America
| | - Alan E. Hubbard
- Division of Epidemiology and Biostatistics, School of Public Health, University of California, Berkeley, California, United States of America
| | - Mahbubur Rahman
- Environmental Interventions Unit, Infectious Disease Division, icddr,b, Dhaka, Bangladesh
| | - Leanne Unicomb
- Environmental Interventions Unit, Infectious Disease Division, icddr,b, Dhaka, Bangladesh
| | - Stephen P. Luby
- Infectious Diseases and Geographic Medicine, Stanford University, Stanford, California, United States of America
| | - John M. Colford
- Division of Epidemiology and Biostatistics, School of Public Health, University of California, Berkeley, California, United States of America
| | - Ayse Ercumen
- Department of Forestry and Environmental Resources, North Carolina State University, Raleigh, North Carolina, United States of America
| |
Collapse
|
8
|
Zhu K, Suttner B, Knee J, Capone D, Moe CL, Stauber CE, Konstantinidis KT, Wallach TE, Pickering AJ, Brown J. Elevated Fecal Mitochondrial DNA from Symptomatic Norovirus Infections Suggests Potential Health Relevance of Human Mitochondrial DNA in Fecal Source Tracking. ENVIRONMENTAL SCIENCE & TECHNOLOGY LETTERS 2022; 9:543-550. [PMID: 35719858 PMCID: PMC9202355 DOI: 10.1021/acs.estlett.2c00140] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/25/2022] [Revised: 05/10/2022] [Accepted: 05/11/2022] [Indexed: 06/15/2023]
Abstract
An end goal of fecal source tracking (FST) is to provide information on risk of transmission of waterborne illnesses associated with fecal contamination. Ideally, concentrations of FST markers in ambient waters would reflect exposure risk. Human mtDNA is an FST marker that is exclusively human in origin and may be elevated in feces of individuals experiencing gastrointestinal inflammation. In this study, we examined whether human mtDNA is elevated in fecal samples from individuals with symptomatic norovirus infections using samples from the United States (US), Mozambique, and Bangladesh. We quantified hCYTB484 (human mtDNA) and HF183/BacR287 (human-associated Bacteroides) FST markers using droplet digital polymerase chain reaction. We observed the greatest difference in concentrations of hCYTB484 when comparing samples from individuals with symptomatic norovirus infections versus individuals without norovirus infections or diarrhea symptoms: log10 increase of 1.42 in US samples (3,820% increase, p-value = 0.062), 0.49 in Mozambique (308% increase, p-value = 0.061), and 0.86 in Bangladesh (648% increase, p-value = 0.035). We did not observe any trends in concentrations of HF183/BacR287 in the same samples. These results suggest concentrations of fecal mtDNA may increase during symptomatic norovirus infection and that mtDNA in environmental samples may represent an unambiguously human source-tracking marker that correlates with enteric pathogen exposure risk.
Collapse
Affiliation(s)
- Kevin
J. Zhu
- School
of Civil and Environmental Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332, United States
| | - Brittany Suttner
- School
of Civil and Environmental Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332, United States
| | - Jackie Knee
- Department
of Disease Control, London School of Hygiene
and Tropical Medicine, London WC1E 7HT,United Kingdom
| | - Drew Capone
- Department
of Environmental Sciences and Engineering, Gillings School of Global
Public Health, University of North Carolina
at Chapel Hill, Chapel
Hill, North Carolina 27599, United States
| | - Christine L. Moe
- Center
for Global Safe Water, Sanitation, and Hygiene, Rollins School of
Public Health, Emory University, Atlanta, Georgia 30322, United States
| | - Christine E. Stauber
- Department
of Population Health Sciences, School of Public Health, Georgia State University, Atlanta, Georgia 30302, United States
| | - Kostas T. Konstantinidis
- School
of Civil and Environmental Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332, United States
| | - Thomas E. Wallach
- Division
of Pediatric Gastroenterology, SUNY Downstate
Health Sciences University, Brooklyn, New York 11203, United States
| | - Amy J. Pickering
- Department
of Civil and Environmental Engineering, University of California, Berkeley, California 94720, United States
| | - Joe Brown
- Department
of Environmental Sciences and Engineering, Gillings School of Global
Public Health, University of North Carolina
at Chapel Hill, Chapel
Hill, North Carolina 27599, United States
| |
Collapse
|
9
|
Wagari S, Girma H, Geremew A. Water, Sanitation, and Hygiene Service Ladders and Childhood Diarrhea in Haramaya Demographic and Health Surveillance Site, Eastern Ethiopia. ENVIRONMENTAL HEALTH INSIGHTS 2022; 16:11786302221091416. [PMID: 35450269 PMCID: PMC9016527 DOI: 10.1177/11786302221091416] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/25/2021] [Accepted: 03/15/2022] [Indexed: 06/14/2023]
Abstract
BACKGROUND The WHO/UNICEF Joint Monitoring Program (JMP) service ladders are worldwide indicators for monitoring drinking water, sanitation, and hygiene elements of the sustainable development goal targets. However, evidence on how the prevalence of childhood diarrhea looks across the service ladders is limited. This study aimed to assess the relationship between WASH service ladders and the prevalence of childhood diarrhea in Haramaya Demographic and Health Surveillance site, Eastern Ethiopia. METHODS A cross-sectional study using a structured questionnaire, observational checklist, and water quality analysis was conducted on 535 households with children under 5 years of age. Poisson regression with a robust error variance estimator was used to investigate the relationship between dependent and independent variables. RESULTS The prevalence of diarrhea among under-five children in the surveillance site was 24.8% (95% CI: 22.3-27.6). The regression model revealed that water and sanitation service ladders were associated with childhood diarrhea. Childhood diarrhea was found to be 73% (APR = 0.27; 95% CI: 0.12-0.57) less common in families with a basic water service ladder than in households with a surface water service ladder. In addition, children in households with basic sanitation services had 83% (APR = 0.17; 95% CI: 0.05-0.56) lower diarrhea prevalence than children in households where open defecation was practiced. CONCLUSION The present study found that childhood diarrhea differed considerably among WASH service levels and continues to be a serious health problem at the surveillance site. This study also shows that much work is needed to improve WASH services.
Collapse
Affiliation(s)
| | - Haileyesus Girma
- Haileyesus Girma, Department of
Environmental Health Science, Haramaya University, P.O. Box 235, Harar,
Ethiopia.
| | | |
Collapse
|
10
|
Rahman AE, Jabeen S, Fernandes G, Banik G, Islam J, Ameen S, Ashrafee S, Hossain AT, Alam HMS, Majid T, Saberin A, Ahmed A, A N M EK, Chisti MJ, Ahmed S, Khan M, Jackson T, Dockrell DH, Nair H, El Arifeen S, Islam MS, Campbell H. Introducing pulse oximetry in routine IMCI services in Bangladesh: A context-driven approach to influence policy and programme through stakeholder engagement. J Glob Health 2022; 12:04029. [PMID: 35486705 PMCID: PMC9079780 DOI: 10.7189/jogh.12.04029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Background An estimated 7 million episodes of severe newborn infections occur annually worldwide, with half a million newborn deaths, most occurring in low- and middle-income countries. Whilst injectable antibiotics are necessary to treat the infection, supportive care is also crucial in ending preventable mortality and morbidity. This study uses multi-country data to assess gaps in coverage, quality, and documentation of supportive care, considering implications for measurement. Methods The EN-BIRTH study was conducted in five hospitals in Bangladesh, Nepal, and Tanzania (July 2017-July 2018). Newborns with an admission diagnosis of clinically-defined infection (sepsis, meningitis, and/or pneumonia) were included. Researchers extracted data from inpatient case notes and interviews with women (usually the mothers) as the primary family caretakers after discharge. The interviews were conducted using a structured survey questionnaire. We used descriptive statistics to report coverage of newborn supportive care components such as oxygen use, phototherapy, and appropriate feeding, and we assessed the validity of measurement through survey-reports using a random-effects model to generate pooled estimates. In this study, key supportive care components were assessment and correction of hypoxaemia, hyperbilirubinemia, and hypoglycaemia. Results Among 1015 neonates who met the inclusion criteria, 89% had an admission clinical diagnosis of sepsis. Major gaps in documentation and care practices related to supportive care varied substantially across the participating hospitals. The pooled sensitivity was low for the survey-reported oxygen use (47%; 95% confidence interval (CI) = 30%-64%) and moderate for phototherapy (60%; 95% CI = 44%-75%). The pooled specificity was high for both the survey-reported oxygen use (85%; 95% CI = 80%-89%) and phototherapy (91%; 95% CI = 82%-97%). Conclusions The women's reports during the exit survey consistently underestimated the coverage of supportive care components for managing infection. We have observed high variability in the inpatient documents across facilities. A standardised ward register for inpatient small and sick newborn care may capture selected supportive care data. However, tracking the detailed care will require standardised individual-level data sets linked to newborn case notes. We recommend investments in assessing the implementation aspects of a standardised inpatient register in resource-poor settings.
Collapse
Affiliation(s)
- Ahmed Ehsanur Rahman
- NIHR Global Health Research Unit on Respiratory Health (RESPIRE), Usher Institute, The University of Edinburgh, Edinburgh, UK
- icddr,b (International Centre for Diarrhoeal Disease Research, Bangladesh), Dhaka, Bangladesh
| | - Sabrina Jabeen
- icddr,b (International Centre for Diarrhoeal Disease Research, Bangladesh), Dhaka, Bangladesh
| | - Genevie Fernandes
- NIHR Global Health Research Unit on Respiratory Health (RESPIRE), Usher Institute, The University of Edinburgh, Edinburgh, UK
| | - Goutom Banik
- icddr,b (International Centre for Diarrhoeal Disease Research, Bangladesh), Dhaka, Bangladesh
| | - Jahurul Islam
- Directorate General of Health Services, Ministry of Health and Family Welfare, Dhaka, Bangladesh
| | - Shafiqul Ameen
- icddr,b (International Centre for Diarrhoeal Disease Research, Bangladesh), Dhaka, Bangladesh
| | - Sabina Ashrafee
- Directorate General of Health Services, Ministry of Health and Family Welfare, Dhaka, Bangladesh
| | - Aniqa Tasnim Hossain
- icddr,b (International Centre for Diarrhoeal Disease Research, Bangladesh), Dhaka, Bangladesh
| | - Husam Md Shah Alam
- Directorate General of Health Services, Ministry of Health and Family Welfare, Dhaka, Bangladesh
| | - Tamanna Majid
- icddr,b (International Centre for Diarrhoeal Disease Research, Bangladesh), Dhaka, Bangladesh
| | - Ashfia Saberin
- Directorate General of Health Services, Ministry of Health and Family Welfare, Dhaka, Bangladesh
| | - Anisuddin Ahmed
- icddr,b (International Centre for Diarrhoeal Disease Research, Bangladesh), Dhaka, Bangladesh
| | | | - Mohammod Jobayer Chisti
- icddr,b (International Centre for Diarrhoeal Disease Research, Bangladesh), Dhaka, Bangladesh
| | | | | | - Tracy Jackson
- NIHR Global Health Research Unit on Respiratory Health (RESPIRE), Usher Institute, The University of Edinburgh, Edinburgh, UK
| | - David H Dockrell
- NIHR Global Health Research Unit on Respiratory Health (RESPIRE), Usher Institute, The University of Edinburgh, Edinburgh, UK
| | - Harish Nair
- NIHR Global Health Research Unit on Respiratory Health (RESPIRE), Usher Institute, The University of Edinburgh, Edinburgh, UK
| | - Shams El Arifeen
- icddr,b (International Centre for Diarrhoeal Disease Research, Bangladesh), Dhaka, Bangladesh
| | - Muhammad Shariful Islam
- Directorate General of Health Services, Ministry of Health and Family Welfare, Dhaka, Bangladesh
| | - Harry Campbell
- NIHR Global Health Research Unit on Respiratory Health (RESPIRE), Usher Institute, The University of Edinburgh, Edinburgh, UK
| |
Collapse
|
11
|
Jawa NA, Rapoport A, Widger K, Zappitelli M, Davison SN, Jha S, Dart AB, Matsuda-Abedini M. Development of a patient-reported outcome measure for the assessment of symptom burden in pediatric chronic kidney disease (PRO-Kid). Pediatr Nephrol 2022; 37:1377-1386. [PMID: 34761300 PMCID: PMC8579900 DOI: 10.1007/s00467-021-05269-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/21/2021] [Revised: 08/06/2021] [Accepted: 08/06/2021] [Indexed: 12/03/2022]
Abstract
BACKGROUND Chronic kidney disease (CKD) and kidney failure in childhood are associated with significant and life-altering morbidities and lower quality of life. Emerging evidence suggests that management should be guided in part by symptom burden; however, there is currently no standardized assessment tool for quantifying symptom burden in this pediatric population. This study aimed to develop and refine a patient-reported symptom assessment tool for children with CKD/kidney failure (PRO-Kid), to evaluate the frequency and impact of symptoms. METHODS This was a prospective observational study of children and caregivers of children with CKD/kidney failure at two Canadian pediatric care centers. Building on previously published patient-reported outcome measures (PROs) for the assessment of symptom burden in other populations, we drafted a 13-item questionnaire. Cognitive interviews were performed with children and caregivers of children with CKD/kidney failure to iteratively refine the questionnaire. RESULTS Twenty-four participants completed cognitive interviewing (11 children, 13 caregivers). The most common symptoms endorsed were feeling left out, feeling sad/depressed, inability to focus, tiredness, nausea, vomiting, not wanting to eat, and changes in the taste of food. Feeling left out was added to the questionnaire as almost all participants voiced this as a frequent and impactful symptom, resulting in a 14-item questionnaire. CONCLUSIONS PRO-Kid is the first pediatric CKD/kidney failure-specific PRO tool to assess symptom burden. Future work should validate this tool in a larger cohort so that it may be used to improve the care of children living with CKD/kidney failure. A higher resolution version of the Graphical abstract is available as Supplementary information.
Collapse
Affiliation(s)
- Natasha A. Jawa
- grid.42327.300000 0004 0473 9646Division of Nephrology, The Hospital for Sick Children, Toronto, ON Canada
| | - Adam Rapoport
- grid.42327.300000 0004 0473 9646Paediatric Advanced Care Team, The Hospital for Sick Children, Toronto, ON Canada ,Emily’s House Children’s Hospice, Toronto, ON Canada ,grid.17063.330000 0001 2157 2938Department of Paediatrics, Faculty of Medicine, University of Toronto, Toronto, ON Canada ,grid.17063.330000 0001 2157 2938Department of Family & Community Medicine, Faculty of Medicine, University of Toronto, Toronto, ON Canada
| | - Kimberley Widger
- grid.42327.300000 0004 0473 9646Paediatric Advanced Care Team, The Hospital for Sick Children, Toronto, ON Canada ,grid.17063.330000 0001 2157 2938Lawrence S. Bloomberg Faculty of Nursing, University of Toronto, Toronto, ON Canada
| | - Michael Zappitelli
- grid.42327.300000 0004 0473 9646Division of Nephrology, The Hospital for Sick Children, Toronto, ON Canada ,grid.17063.330000 0001 2157 2938Department of Paediatrics, Faculty of Medicine, University of Toronto, Toronto, ON Canada ,grid.42327.300000 0004 0473 9646Child Health Evaluative Sciences, SickKids Research Institute, Toronto, ON Canada
| | - Sara N. Davison
- grid.17089.370000 0001 2190 316XDivision of Nephrology and Immunology, University of Alberta, Edmonton, AB Canada
| | - Sarita Jha
- grid.460198.20000 0004 4685 0561Children’s Hospital Research Institute of Manitoba, Winnipeg, MB Canada
| | - Allison B. Dart
- grid.460198.20000 0004 4685 0561Children’s Hospital Research Institute of Manitoba, Winnipeg, MB Canada ,grid.21613.370000 0004 1936 9609Department of Pediatrics and Child Health, University of Manitoba, Winnipeg, MB Canada
| | - Mina Matsuda-Abedini
- Division of Nephrology, The Hospital for Sick Children, Toronto, ON, Canada. .,Department of Paediatrics, Faculty of Medicine, University of Toronto, Toronto, ON, Canada.
| |
Collapse
|
12
|
Lanyero H, Ocan M, Obua C, Stålsby Lundborg C, Nanzigu S, Katureebe A, N Kalyango J, Eriksen J. Antibiotic use among children under five years with diarrhea in rural communities of Gulu, northern Uganda: a cross-sectional study. BMC Public Health 2021; 21:1254. [PMID: 34187421 PMCID: PMC8244156 DOI: 10.1186/s12889-021-11254-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2020] [Accepted: 06/09/2021] [Indexed: 11/10/2022] Open
Abstract
Background Diarrhea is the second leading cause of mortality in children under 5 years of age globally, and the risk of death increases with practices such as restriction of fluid intake and inappropriate use of antibiotics. We determined the prevalence of antibiotic use in managing diarrhea in children under 5 years of age in rural communities of Gulu district, northern Uganda. Method A cross-sectional study among children under 5 years with diarrhea, from households selected using multi-stage sampling. A researcher administered questionnaire was used to obtain data from caregivers of these children. Results Of the 856 children recruited, 318 (37.1%, 318/856) had experienced diarrhea, where 263 (82.7%, 263/318) had diarrhea with acute respiratory infections (ARIs), and 55 (17.3%, 55/318) had diarrhea without ARIs. The majority (89.6%, 285/318) of the children had non-bloody diarrhea. A high proportion (82.8%) of the children with non-bloody diarrhea also had ARIs. Bloody diarrhea was reported for 33 (10.4%) children including those with ARIs, and only 6 of these (18.2%) children had bloody diarrhea without ARIs. Of the 318 children with diarrhea, over half (52%, CI: 46–57) were administered antibiotics. Of the 55 children who had diarrhea without ARIs, over a third (38%, CI: 26–51) were administered antibiotics. Similarly, of the 263 children with diarrhea and ARIs, 54% (CI: 48–60) were treated with antibiotics. The determinants of antibiotic use included; children living in peri-urban settings (AOR: 3.41, CI: 1.65–7.08, P = 0.001), getting treatment from health facility (AOR: 1.76, CI: 1.06–2.93, P = 0.029), and having diarrhea with ARIs (AOR: 3.09, CI: 1.49–6.42, P = 0.003). Conclusion Antibiotic use is common among children under 5 years with diarrhea in rural communities of northern Uganda.
Collapse
Affiliation(s)
- Hindum Lanyero
- Department of Pharmacology and Therapeutics, Makerere University College of Health Sciences, Kampala, Uganda.
| | - Moses Ocan
- Department of Pharmacology and Therapeutics, Makerere University College of Health Sciences, Kampala, Uganda
| | - Celestino Obua
- Mbarara University of Science and Technology, Mbarara, Uganda
| | - Cecilia Stålsby Lundborg
- Department of Global Public Health, Karolinska Institutet, Tomtebodavägen 18 A, 171 77, Stockholm, Sweden
| | - Sarah Nanzigu
- Department of Pharmacology and Therapeutics, Makerere University College of Health Sciences, Kampala, Uganda
| | | | - Joan N Kalyango
- Department of Pharmacy, Makerere University College of Health Sciences, Kampala, Uganda.,Clinical Epidemiology Unit, Makerere University College of Health Sciences, Kampala, Uganda
| | - Jaran Eriksen
- Department of Global Public Health, Karolinska Institutet, Tomtebodavägen 18 A, 171 77, Stockholm, Sweden.,Department of infectious diseases, South General Hospital, 118 83, Stockholm, Sweden
| |
Collapse
|
13
|
Parvin T, Thomas ED, Bhuyian MSI, Uddin IM, Hasan MT, Rahman Z, Barman I, Zohura F, Masud J, Sultana M, Westin A, Johura FT, Monira S, Biswas SK, Sack DA, Perin J, Alam M, George CM. Fecal Contamination on the Household Compound and in Water Sources are Associated with Subsequent Diarrhea in Young Children in Urban Bangladesh (CHoBI7 Program). Am J Trop Med Hyg 2021; 105:261-266. [PMID: 34097647 DOI: 10.4269/ajtmh.20-1516] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2020] [Accepted: 03/11/2021] [Indexed: 11/07/2022] Open
Abstract
We investigated the environmental and individual-level risk factors for diarrheal disease among young children in slum areas of Dhaka, Bangladesh. A prospective cohort study was conducted among 884 children under 5 years of age. Caregiver reports were collected on sociodemographic factors and hygiene behaviors. Diarrhea surveillance data was collected monthly based on caregiver-reported diarrhea for children in the past 2 weeks during the 12-month study period. Unannounced spot checks of the household compound were performed at 1, 3, 6, 9, and 12 months after enrollment to check for the presence of feces (animal or human) and the presence of animals in the child's sleeping space, to assess child and caregiver hands for the presence of dirt, and to collect samples of the household's source and stored drinking water. Children with feces found on the household compound during spot checks had a significantly higher odds of diarrhea (odds ratio: 1.71; 95% confidence interval: 1.23-2.38). Children residing in households with > 100 colony forming units/100 mL Escherichia coli in source drinking water had a significantly higher odds of diarrhea (OR: 1.43; 95% CI: 1.06-1.92). The presence of feces on the household compound and source drinking water with > 100 colony forming units/100 mL E. coli were significant risk factors for diarrheal disease for children < 5 years of age in slum areas of Dhaka, Bangladesh. These findings demonstrate the urgent need for comprehensive interventions to reduce fecal contamination on the household compound to protect the health of susceptible pediatric populations.
Collapse
Affiliation(s)
- Tahmina Parvin
- 1International Centre for Diarrhoeal Disease Research, Bangladesh (icddr,b), Dhaka, Bangladesh
| | - Elizabeth D Thomas
- 2Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland
| | | | - Ismat Minhaj Uddin
- 1International Centre for Diarrhoeal Disease Research, Bangladesh (icddr,b), Dhaka, Bangladesh
| | | | - Zillur Rahman
- 1International Centre for Diarrhoeal Disease Research, Bangladesh (icddr,b), Dhaka, Bangladesh
| | - Indrajeet Barman
- 1International Centre for Diarrhoeal Disease Research, Bangladesh (icddr,b), Dhaka, Bangladesh
| | - Fatema Zohura
- 1International Centre for Diarrhoeal Disease Research, Bangladesh (icddr,b), Dhaka, Bangladesh
| | - Jahed Masud
- 1International Centre for Diarrhoeal Disease Research, Bangladesh (icddr,b), Dhaka, Bangladesh
| | - Marzia Sultana
- 1International Centre for Diarrhoeal Disease Research, Bangladesh (icddr,b), Dhaka, Bangladesh
| | - Anne Westin
- 2Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland
| | - Fatema-Tuz Johura
- 1International Centre for Diarrhoeal Disease Research, Bangladesh (icddr,b), Dhaka, Bangladesh
| | - Shirajum Monira
- 1International Centre for Diarrhoeal Disease Research, Bangladesh (icddr,b), Dhaka, Bangladesh
| | - Shwapon Kumar Biswas
- 1International Centre for Diarrhoeal Disease Research, Bangladesh (icddr,b), Dhaka, Bangladesh.,4Ministry of Health & Family Welfare, Dhaka, Bangladesh
| | - David A Sack
- 2Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland
| | - Jamie Perin
- 2Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland
| | - Munirul Alam
- 1International Centre for Diarrhoeal Disease Research, Bangladesh (icddr,b), Dhaka, Bangladesh
| | - Christine Marie George
- 2Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland
| |
Collapse
|
14
|
Jorgensen JM, Young R, Ashorn P, Ashorn U, Chaima D, Davis JCC, Goonatilleke E, Kumwenda C, Lebrilla CB, Maleta K, Sadalaki J, Totten SM, Wu LD, Zivkovic AM, Dewey KG. Associations of Human Milk Oligosaccharides and Bioactive Proteins with Infant Morbidity and Inflammation in Malawian Mother-Infant Dyads. Curr Dev Nutr 2021; 5:nzab072. [PMID: 34084993 PMCID: PMC8163417 DOI: 10.1093/cdn/nzab072] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2021] [Revised: 04/21/2021] [Accepted: 04/23/2021] [Indexed: 11/15/2022] Open
Abstract
BACKGROUND Human milk oligosaccharides (HMOs) and bioactive proteins likely benefit infant health, but information on these relations is sparse. OBJECTIVES We aimed to examine associations of milk content of HMOs and bioactive proteins with incidence and longitudinal prevalence of infant morbidity (any illness, fever, diarrhea, acute respiratory infection, and loss of appetite) and markers of inflammation [C-reactive protein (CRP) and α-1-acid glycoprotein (AGP)]. These are secondary analyses of a randomized controlled trial. METHODS Breast milk samples at 6 mo postpartum (n = 659) were analyzed to quantify absolute abundance of HMOs, relative abundance of fucosylated HMOs, sialylated HMOs, and 51 individual HMOs, and concentrations of 6 bioactive proteins (lactalbumin, lactoferrin, lysozyme, antitrypsin, IgA, and osteopontin). We examined associations of these constituents with infant morbidity from 6 to 7 and 6 to 12 mo, and CRP and AGP at 6 and 18 mo, considering maternal secretor status [presence or absence of the functional enzyme encoded by the fucosyltransferase 2 gene (FUT2) ] and adjusting for covariates and multiple hypothesis testing. RESULTS In secretors there were positive associations between total HMOs and longitudinal prevalence of fever (P = 0.032), between fucosylated HMOs and incidence of diarrhea (P = 0.026), and between lactoferrin and elevated CRP at 18 mo (P = 0.011). In nonsecretors, there were inverse associations between lactoferrin and incidence of fever (P = 0.007), between osteopontin and longitudinal prevalence of lost appetite (P = 0.038), and between fucosylated HMOs and incidence of diarrhea (P = 0.025), lost appetite (P = 0.019), and concentrations of AGP and CRP at 6 mo (P = 0.001 and 0.010); and positive associations between total HMOs and incidence of lost appetite (P = 0.024) and elevated CRP at 18 mo (P = 0.026), between lactalbumin and incidence of diarrhea (P = 0.006), and between lactoferrin and elevated CRP at 18 mo (P = 0.015). CONCLUSIONS Certain HMOs and bioactive proteins were associated with infant morbidity and inflammation, particularly in nonsecretors. Further research is needed to elucidate the causality of these relations.This trial was registered at clinicaltrials.gov as NCT01239693.
Collapse
Affiliation(s)
- Josh M Jorgensen
- Department of Nutrition, University of California, Davis, Davis, CA, USA
| | - Rebecca Young
- Department of Nutrition, University of California, Davis, Davis, CA, USA
| | - Per Ashorn
- Center for Child Health Research, Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
- Tampere University Hospital, Department of Pediatrics, Tampere, Finland
| | - Ulla Ashorn
- Center for Child Health Research, Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
| | - David Chaima
- Department of Community Health, University of Malawi College of Medicine, Blantyre, Malawi
| | - Jasmine C C Davis
- Department of Chemistry, University of California, Davis, Davis, CA, USA
| | | | - Chiza Kumwenda
- Department of Community Health, University of Malawi College of Medicine, Blantyre, Malawi
- Department of Food Science and Nutrition, School of Agricultural Sciences, University of Zambia, Lusaka, Zambia
| | - Carlito B Lebrilla
- Department of Chemistry, University of California, Davis, Davis, CA, USA
- Department of Biochemistry and Molecular Medicine, University of California, Davis, Davis, CA, USA
| | - Kenneth Maleta
- Department of Community Health, University of Malawi College of Medicine, Blantyre, Malawi
| | - John Sadalaki
- Department of Community Health, University of Malawi College of Medicine, Blantyre, Malawi
| | - Sarah M Totten
- Department of Chemistry, University of California, Davis, Davis, CA, USA
| | - Lauren D Wu
- Department of Chemistry, University of California, Davis, Davis, CA, USA
| | - Angela M Zivkovic
- Department of Nutrition, University of California, Davis, Davis, CA, USA
- Foods for Health Institute, University of California, Davis, Davis, CA, USA
| | - Kathryn G Dewey
- Department of Nutrition, University of California, Davis, Davis, CA, USA
| |
Collapse
|
15
|
Do NTT, Vu HTL, Nguyen CTK, Punpuing S, Khan WA, Gyapong M, Asante KP, Munguambe K, Gómez-Olivé FX, John-Langba J, Tran TK, Sunpuwan M, Sevene E, Nguyen HH, Ho PD, Matin MA, Ahmed S, Karim MM, Cambaco O, Afari-Asiedu S, Boamah-Kaali E, Abdulai MA, Williams J, Asiamah S, Amankwah G, Agyekum MP, Wagner F, Ariana P, Sigauque B, Tollman S, van Doorn HR, Sankoh O, Kinsman J, Wertheim HFL. Community-based antibiotic access and use in six low-income and middle-income countries: a mixed-method approach. Lancet Glob Health 2021; 9:e610-e619. [PMID: 33713630 PMCID: PMC8050200 DOI: 10.1016/s2214-109x(21)00024-3] [Citation(s) in RCA: 114] [Impact Index Per Article: 38.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2020] [Revised: 01/12/2021] [Accepted: 01/13/2021] [Indexed: 12/16/2022]
Abstract
BACKGROUND Antimicrobial misuse is common in low-income and middle-income countries (LMICs), and this practice is a driver of antibiotic resistance. We compared community-based antibiotic access and use practices across communities in LMICs to identify contextually specific targets for interventions to improve antibiotic use practices. METHODS We did quantitative and qualitative assessments of antibiotic access and use in six LMICs across Africa (Mozambique, Ghana, and South Africa) and Asia (Bangladesh, Vietnam, and Thailand) over a 2·5-year study period (July 1, 2016-Dec 31, 2018). We did quantitative assessments of community antibiotic access and use through supplier mapping, customer exit interviews, and household surveys. These quantitative assessments were triangulated with qualitative drug supplier and consumer interviews and discussions. FINDINGS Vietnam and Bangladesh had the largest proportions of non-licensed antibiotic dispensing points. For mild illness, drug stores were the most common point of contact when seeking antibiotics in most countries, except South Africa and Mozambique, where public facilities were most common. Self-medication with antibiotics was found to be widespread in Vietnam (55·2% of antibiotics dispensed without prescription), Bangladesh (45·7%), and Ghana (36·1%), but less so in Mozambique (8·0%), South Africa (1·2%), and Thailand (3·9%). Self-medication was considered to be less time consuming, cheaper, and overall, more convenient than accessing them through health-care facilities. Factors determining where treatment was sought often involved relevant policies, trust in the supplier and the drug, disease severity, and whether the antibiotic was intended for a child. Confusion regarding how to identify oral antibiotics was revealed in both Africa and Asia. INTERPRETATION Contextual complexities and differences between countries with different incomes, policy frameworks, and cultural norms were revealed. These contextual differences render a single strategy inadequate and instead necessitate context-tailored, integrated intervention packages to improve antibiotic use in LMICs as part of global efforts to combat antibiotic resistance. FUNDING Wellcome Trust and Volkswagen Foundation.
Collapse
Affiliation(s)
- Nga T T Do
- Oxford University Clinical Research Unit, Hanoi, Vietnam
| | - Huong T L Vu
- Oxford University Clinical Research Unit, Hanoi, Vietnam
| | - Chuc T K Nguyen
- Department of Family Medicine, Hanoi Medical University, Hanoi, Vietnam
| | - Sureeporn Punpuing
- Institute for Population and Social Research, Mahidol University, Nakhonpathom, Thailand
| | - Wasif Ali Khan
- International Centre for Diarrhoeal Disease Research, Dhaka, Bangladesh
| | - Margaret Gyapong
- Institute of Health Research, University of Health and Allied Sciences, Ho, Ghana
| | | | - Khatia Munguambe
- Manhiça Health Research Centre, Manhiça, Mozambique; Faculty of Medicine, Eduardo Mondlane University, Maputo, Mozambique
| | - F Xavier Gómez-Olivé
- MRC-Wits Rural Public Health and Health Transitions Research Unit (Agincourt), University of the Witwatersrand, Johannesburg, South Africa
| | - Johannes John-Langba
- School of Applied Human Sciences, University of Kwazulu-Natal, Durban, South Africa
| | - Toan K Tran
- Department of Family Medicine, Hanoi Medical University, Hanoi, Vietnam
| | - Malee Sunpuwan
- Institute for Population and Social Research, Mahidol University, Nakhonpathom, Thailand
| | - Esperanca Sevene
- Manhiça Health Research Centre, Manhiça, Mozambique; Faculty of Medicine, Eduardo Mondlane University, Maputo, Mozambique
| | - Hanh H Nguyen
- Department of Family Medicine, Hanoi Medical University, Hanoi, Vietnam
| | - Phuc D Ho
- Institute of Mathematics, Vietnam Academy of Science and Technology, Hanoi, Vietnam
| | | | - Sabeena Ahmed
- International Centre for Diarrhoeal Disease Research, Dhaka, Bangladesh
| | | | - Olga Cambaco
- Manhiça Health Research Centre, Manhiça, Mozambique
| | | | | | | | | | | | | | | | - Fezile Wagner
- MRC-Wits Rural Public Health and Health Transitions Research Unit (Agincourt), University of the Witwatersrand, Johannesburg, South Africa
| | - Proochista Ariana
- Nuffied Department of Clinical Medicine, University of Oxford, Oxford, UK
| | | | - Stephen Tollman
- MRC-Wits Rural Public Health and Health Transitions Research Unit (Agincourt), University of the Witwatersrand, Johannesburg, South Africa
| | - H Rogier van Doorn
- Oxford University Clinical Research Unit, Hanoi, Vietnam; Nuffied Department of Clinical Medicine, University of Oxford, Oxford, UK
| | - Osman Sankoh
- School of Public Health, University of the Witwatersrand, Johannesburg, South Africa; Statistics Sierra Leone, Freetown, Sierra Leone; University Secretariat, Njala University, Njala, Sierra Leone; Heidelberg Institute for Global Health, University of Heidelberg Medical School, Heidelberg, Germany
| | - John Kinsman
- Department of Epidemiology and Global Health, Umeå University, Umeå, Sweden
| | - Heiman F L Wertheim
- Oxford University Clinical Research Unit, Hanoi, Vietnam; Department of Medical Microbiology and Radboudumc Center for Infectious Diseases, Radboudumc, Nijmegen, The Netherlands.
| |
Collapse
|
16
|
Knee J, Sumner T, Adriano Z, Anderson C, Bush F, Capone D, Casmo V, Holcomb D, Kolsky P, MacDougall A, Molotkova E, Braga JM, Russo C, Schmidt WP, Stewart J, Zambrana W, Zuin V, Nalá R, Cumming O, Brown J. Effects of an urban sanitation intervention on childhood enteric infection and diarrhea in Maputo, Mozambique: A controlled before-and-after trial. eLife 2021; 10:e62278. [PMID: 33835026 PMCID: PMC8121544 DOI: 10.7554/elife.62278] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2020] [Accepted: 04/03/2021] [Indexed: 12/12/2022] Open
Abstract
We conducted a controlled before-and-after trial to evaluate the impact of an onsite urban sanitation intervention on the prevalence of enteric infection, soil transmitted helminth re-infection, and diarrhea among children in Maputo, Mozambique. A non-governmental organization replaced existing poor-quality latrines with pour-flush toilets with septic tanks serving household clusters. We enrolled children aged 1-48 months at baseline and measured outcomes before and 12 and 24 months after the intervention, with concurrent measurement among children in a comparable control arm. Despite nearly exclusive use, we found no evidence that intervention affected the prevalence of any measured outcome after 12 or 24 months of exposure. Among children born into study sites after intervention, we observed a reduced prevalence of Trichuris and Shigella infection relative to the same age group at baseline (<2 years old). Protection from birth may be important to reduce exposure to and infection with enteric pathogens in this setting.
Collapse
Affiliation(s)
- Jackie Knee
- London School of Hygiene & Tropical Medicine, Faculty of Infectious Tropical Diseases, Disease Control DepartmentLondonUnited Kingdom
- Georgia Institute of Technology, School of Civil and Environmental EngineeringAtlantaUnited States
| | - Trent Sumner
- Georgia Institute of Technology, School of Civil and Environmental EngineeringAtlantaUnited States
| | | | - Claire Anderson
- Georgia Institute of Technology, School of Civil and Environmental EngineeringAtlantaUnited States
| | - Farran Bush
- Georgia Institute of Technology, School of Chemical and Biomolecular EngineeringAtlantaUnited States
| | - Drew Capone
- Georgia Institute of Technology, School of Civil and Environmental EngineeringAtlantaUnited States
- University of North Carolina at Chapel Hill, Gillings School of Global Public Health, Department of EpidemiologyChapel HillUnited States
| | | | - David Holcomb
- University of North Carolina at Chapel Hill, Gillings School of Global Public Health, Department of EpidemiologyChapel HillUnited States
- University of North Carolina at Chapel Hill, Gillings School of Global Public Health, Department of Environmental Sciences and EngineeringChapel HillUnited States
| | - Pete Kolsky
- University of North Carolina at Chapel Hill, Gillings School of Global Public Health, Department of EpidemiologyChapel HillUnited States
| | - Amy MacDougall
- London School of Hygiene & Tropical Medicine, Faculty of Epidemiology and Population Health, Department of Medical StatisticsLondonUnited Kingdom
| | - Evgeniya Molotkova
- Georgia Institute of Technology, School of Biological SciencesAtlantaUnited States
| | | | - Celina Russo
- Georgia Institute of Technology, School of Civil and Environmental EngineeringAtlantaUnited States
| | - Wolf Peter Schmidt
- London School of Hygiene & Tropical Medicine, Faculty of Infectious Tropical Diseases, Disease Control DepartmentLondonUnited Kingdom
| | - Jill Stewart
- University of North Carolina at Chapel Hill, Gillings School of Global Public Health, Department of EpidemiologyChapel HillUnited States
| | - Winnie Zambrana
- Georgia Institute of Technology, School of Civil and Environmental EngineeringAtlantaUnited States
| | - Valentina Zuin
- Yale-NUS College, Division of Social ScienceSingaporeSingapore
| | | | - Oliver Cumming
- London School of Hygiene & Tropical Medicine, Faculty of Infectious Tropical Diseases, Disease Control DepartmentLondonUnited Kingdom
| | - Joe Brown
- Georgia Institute of Technology, School of Civil and Environmental EngineeringAtlantaUnited States
- University of North Carolina at Chapel Hill, Gillings School of Global Public Health, Department of EpidemiologyChapel HillUnited States
| |
Collapse
|
17
|
Rahman AE, Hossain AT, Zaman SB, Salim N, K C A, Day LT, Ameen S, Ruysen H, Kija E, Peven K, Tahsina T, Ahmed A, Rahman QSU, Khan J, Kong S, Campbell H, Hailegebriel TD, Ram PK, Qazi SA, El Arifeen S, Lawn JE. Antibiotic use for inpatient newborn care with suspected infection: EN-BIRTH multi-country validation study. BMC Pregnancy Childbirth 2021; 21:229. [PMID: 33765948 PMCID: PMC7995687 DOI: 10.1186/s12884-020-03424-7] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Abstract
BACKGROUND An estimated 30 million neonates require inpatient care annually, many with life-threatening infections. Appropriate antibiotic management is crucial, yet there is no routine measurement of coverage. The Every Newborn Birth Indicators Research Tracking in Hospitals (EN-BIRTH) study aimed to validate maternal and newborn indicators to inform measurement of coverage and quality of care. This paper reports validation of reported antibiotic coverage by exit survey of mothers for hospitalized newborns with clinically-defined infections, including sepsis, meningitis, and pneumonia. METHODS EN-BIRTH study was conducted in five hospitals in Bangladesh, Nepal, and Tanzania (July 2017-July 2018). Neonates were included based on case definitions to focus on term/near-term, clinically-defined infection syndromes (sepsis, meningitis, and pneumonia), excluding major congenital abnormalities. Clinical management was abstracted from hospital inpatient case notes (verification) which was considered as the gold standard against which to validate accuracy of women's report. Exit surveys were conducted using questions similar to The Demographic and Health Surveys (DHS) approach for coverage of childhood pneumonia treatment. We compared survey-report to case note verified, pooled across the five sites using random effects meta-analysis. RESULTS A total of 1015 inpatient neonates admitted in the five hospitals met inclusion criteria with clinically-defined infection syndromes. According to case note verification, 96.7% received an injectable antibiotic, although only 14.5% of them received the recommended course of at least 7 days. Among women surveyed (n = 910), 98.8% (95% CI: 97.8-99.5%) correctly reported their baby was admitted to a neonatal ward. Only 47.1% (30.1-64.5%) reported their baby's diagnosis in terms of sepsis, meningitis, or pneumonia. Around three-quarters of women reported their baby received an injection whilst in hospital, but 12.3% reported the correct antibiotic name. Only 10.6% of the babies had a blood culture and less than 1% had a lumbar puncture. CONCLUSIONS Women's report during exit survey consistently underestimated the denominator (reporting the baby had an infection), and even more so the numerator (reporting known injectable antibiotics). Admission to the neonatal ward was accurately reported and may have potential as a contact point indicator for use in household surveys, similar to institutional births. Strengthening capacity and use of laboratory diagnostics including blood culture are essential to promote appropriate use of antibiotics. To track quality of neonatal infection management, we recommend using inpatient records to measure specifics, requiring more research on standardised inpatient records.
Collapse
Affiliation(s)
- Ahmed Ehsanur Rahman
- Maternal and Child Health Division, International Centre for Diarrhoeal Disease Research, Bangladesh (icddr,b), 68 Shahid Tajuddin Ahmed Sarani, Mohakhali, Dhaka, Bangladesh.
| | - Aniqa Tasnim Hossain
- Maternal and Child Health Division, International Centre for Diarrhoeal Disease Research, Bangladesh (icddr,b), 68 Shahid Tajuddin Ahmed Sarani, Mohakhali, Dhaka, Bangladesh
| | - Sojib Bin Zaman
- Maternal and Child Health Division, International Centre for Diarrhoeal Disease Research, Bangladesh (icddr,b), 68 Shahid Tajuddin Ahmed Sarani, Mohakhali, Dhaka, Bangladesh
| | - Nahya Salim
- Department of Health Systems, Impact Evaluation and Policy, Ifakara Health Institute (IHI), Dar es Salaam, Tanzania
- Department of Paediatrics and Child Health, Muhimbili University of Health and Allied Sciences (MUHAS), Dar Es Salaam, Tanzania
| | - Ashish K C
- International Maternal and Child Health, Department of Women's and Children's Health, Uppsala University, Uppsala, Sweden
| | - Louise T Day
- Maternal, Adolescent, Reproductive & Child Health (MARCH) Centre, London School of Hygiene & Tropical Medicine, London, UK
| | - Shafiqul Ameen
- Maternal and Child Health Division, International Centre for Diarrhoeal Disease Research, Bangladesh (icddr,b), 68 Shahid Tajuddin Ahmed Sarani, Mohakhali, Dhaka, Bangladesh
| | - Harriet Ruysen
- Maternal, Adolescent, Reproductive & Child Health (MARCH) Centre, London School of Hygiene & Tropical Medicine, London, UK
| | - Edward Kija
- Department of Paediatrics and Child Health, Muhimbili University of Health and Allied Sciences (MUHAS), Dar Es Salaam, Tanzania
| | - Kimberly Peven
- Maternal, Adolescent, Reproductive & Child Health (MARCH) Centre, London School of Hygiene & Tropical Medicine, London, UK
- Florence Nightingale Faculty of Nursing, Midwifery & Palliative Care, King's College London, London, UK
| | - Tazeen Tahsina
- Maternal and Child Health Division, International Centre for Diarrhoeal Disease Research, Bangladesh (icddr,b), 68 Shahid Tajuddin Ahmed Sarani, Mohakhali, Dhaka, Bangladesh
| | - Anisuddin Ahmed
- Maternal and Child Health Division, International Centre for Diarrhoeal Disease Research, Bangladesh (icddr,b), 68 Shahid Tajuddin Ahmed Sarani, Mohakhali, Dhaka, Bangladesh
| | - Qazi Sadeq-Ur Rahman
- Maternal and Child Health Division, International Centre for Diarrhoeal Disease Research, Bangladesh (icddr,b), 68 Shahid Tajuddin Ahmed Sarani, Mohakhali, Dhaka, Bangladesh
| | - Jasmin Khan
- Maternal and Child Health Division, International Centre for Diarrhoeal Disease Research, Bangladesh (icddr,b), 68 Shahid Tajuddin Ahmed Sarani, Mohakhali, Dhaka, Bangladesh
| | - Stefanie Kong
- Maternal, Adolescent, Reproductive & Child Health (MARCH) Centre, London School of Hygiene & Tropical Medicine, London, UK
| | | | | | | | | | - Shams El Arifeen
- Maternal and Child Health Division, International Centre for Diarrhoeal Disease Research, Bangladesh (icddr,b), 68 Shahid Tajuddin Ahmed Sarani, Mohakhali, Dhaka, Bangladesh
| | - Joy E Lawn
- Maternal, Adolescent, Reproductive & Child Health (MARCH) Centre, London School of Hygiene & Tropical Medicine, London, UK
| |
Collapse
|
18
|
Lund AJ, Rehkopf DH, Sokolow SH, Sam MM, Jouanard N, Schacht AM, Senghor S, Fall A, Riveau G, De Leo GA, Lopez-Carr D. Land use impacts on parasitic infection: a cross-sectional epidemiological study on the role of irrigated agriculture in schistosome infection in a dammed landscape. Infect Dis Poverty 2021; 10:35. [PMID: 33745442 PMCID: PMC7983278 DOI: 10.1186/s40249-021-00816-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2020] [Accepted: 03/05/2021] [Indexed: 01/20/2023] Open
Abstract
Background Water resources development promotes agricultural expansion and food security. But are these benefits offset by increased infectious disease risk? Dam construction on the Senegal River in 1986 was followed by agricultural expansion and increased transmission of human schistosomes. Yet the mechanisms linking these two processes at the individual and household levels remain unclear. We investigated the association between household land use and schistosome infection in children. Methods We analyzed cross-sectional household survey data (n = 655) collected in 16 rural villages in August 2016 across demographic, socio-economic and land use dimensions, which were matched to Schistosoma haematobium (n = 1232) and S. mansoni (n = 1222) infection data collected from school-aged children. Mixed effects regression determined the relationship between irrigated area and schistosome infection presence and intensity. Results Controlling for socio-economic and demographic risk factors, irrigated area cultivated by a household was associated with an increase in the presence of S. haematobium infection (odds ratio [OR] = 1.14; 95% confidence interval [95% CI]: 1.03–1.28) but not S. mansoni infection (OR = 1.02; 95% CI: 0.93–1.11). Associations between infection intensity and irrigated area were positive but imprecise (S. haematobium: rate ratio [RR] = 1.05; 95% CI: 0.98–1.13, S. mansoni: RR = 1.09; 95% CI: 0.89–1.32). Conclusions Household engagement in irrigated agriculture increases individual risk of S. haematobium but not S. mansoni infection. Increased contact with irrigated landscapes likely drives exposure, with greater impacts on households relying on agricultural livelihoods.![]() Supplementary Information The online version contains supplementary material available at 10.1186/s40249-021-00816-5.
Collapse
Affiliation(s)
- Andrea J Lund
- Emmett Interdisciplinary Program in Environment and Resources, Stanford University, 473 Via Ortega Suite 226, Stanford, CA, USA.
| | - David H Rehkopf
- Department of Epidemiology and Population Health, Stanford University School of Medicine, Stanford University, 1701 Page Mill Road Room 229, Palo Alto, CA, USA
| | - Susanne H Sokolow
- Woods Institute for the Environment, Stanford University, 473 Via Ortega, Stanford, CA, USA.,Hopkins Marine Station, Stanford University, 120 Ocean View Blvd, Pacific Grove, CA, USA
| | - M Moustapha Sam
- Centre de Recherche Biomédicale-Espoir Pour La Sante, 263 Route de la Corniche, BP 226, Saint-Louis, Sénégal
| | - Nicolas Jouanard
- Station d'Innovation Aquacole, UGB Cote Cite SAED, BP 524, Saint-Louis, Sénégal.,Center for Infection and Immunology of Lille, Institut Pasteur de Lille, 1 Rue du Professeur Calmette, 59800, Lille, France
| | - Anne-Marie Schacht
- Centre de Recherche Biomédicale-Espoir Pour La Sante, 263 Route de la Corniche, BP 226, Saint-Louis, Sénégal.,Center for Infection and Immunology of Lille, Institut Pasteur de Lille, 1 Rue du Professeur Calmette, 59800, Lille, France
| | - Simon Senghor
- Centre de Recherche Biomédicale-Espoir Pour La Sante, 263 Route de la Corniche, BP 226, Saint-Louis, Sénégal
| | - Assane Fall
- Centre de Recherche Biomédicale-Espoir Pour La Sante, 263 Route de la Corniche, BP 226, Saint-Louis, Sénégal
| | - Gilles Riveau
- Centre de Recherche Biomédicale-Espoir Pour La Sante, 263 Route de la Corniche, BP 226, Saint-Louis, Sénégal.,Center for Infection and Immunology of Lille, Institut Pasteur de Lille, 1 Rue du Professeur Calmette, 59800, Lille, France
| | - Giulio A De Leo
- Hopkins Marine Station, Stanford University, 120 Ocean View Blvd, Pacific Grove, CA, USA
| | - David Lopez-Carr
- Department of Geography, University of California, 4836 Ellison Hall, Santa Barbara, CA, USA
| |
Collapse
|
19
|
Wojcik S, Bijral AS, Johnston R, Lavista Ferres JM, King G, Kennedy R, Vespignani A, Lazer D. Survey data and human computation for improved flu tracking. Nat Commun 2021; 12:194. [PMID: 33419989 PMCID: PMC7794445 DOI: 10.1038/s41467-020-20206-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2019] [Accepted: 11/13/2020] [Indexed: 11/08/2022] Open
Abstract
While digital trace data from sources like search engines hold enormous potential for tracking and understanding human behavior, these streams of data lack information about the actual experiences of those individuals generating the data. Moreover, most current methods ignore or under-utilize human processing capabilities that allow humans to solve problems not yet solvable by computers (human computation). We demonstrate how behavioral research, linking digital and real-world behavior, along with human computation, can be utilized to improve the performance of studies using digital data streams. This study looks at the use of search data to track prevalence of Influenza-Like Illness (ILI). We build a behavioral model of flu search based on survey data linked to users' online browsing data. We then utilize human computation for classifying search strings. Leveraging these resources, we construct a tracking model of ILI prevalence that outperforms strong historical benchmarks using only a limited stream of search data and lends itself to tracking ILI in smaller geographic units. While this paper only addresses searches related to ILI, the method we describe has potential for tracking a broad set of phenomena in near real-time.
Collapse
Affiliation(s)
| | | | | | | | - Gary King
- Harvard University, Cambridge, MA, USA
| | - Ryan Kennedy
- University of Houston, Philip Guthrie Hoffman Hall, Houston, TX, USA
| | | | - David Lazer
- Harvard University, Cambridge, MA, USA
- Northeastern University, 177 Huntington Ave, Boston, MA, USA
| |
Collapse
|
20
|
Patrick R, McElroy S, Schwarz L, Kayser G, Benmarhnia T. Modeling the Impact of Population Intervention Strategies on Reducing Health Disparities: Water, Sanitation, and Hygiene Interventions and Childhood Diarrheal Disease in Peru. Am J Trop Med Hyg 2020; 104:338-345. [PMID: 33236711 DOI: 10.4269/ajtmh.19-0775] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
Abstract
Access to safe water and basic sanitation and hygiene facilities (WASH) are important for childhood health globally. However, inequalities in WASH access persist, and local governments need to better understand the potential impact of scaling up WASH services on childhood health. Using 2011 Peru Demographic and Health Survey data as a case study, we applied a modified substitution estimator approach to assess the impact of scaling up access (20-100%) to WASH on diarrhea prevalence among children < 5 years. The modified substitution estimator approach can help identify population subgroups or areas where WASH interventions and sustained implementation could be most beneficial and reduce existing disparities. Using findings from a recent meta-analysis and computing bootstrapped estimates and 95% CIs, we examined inequalities in the effect of WASH on self-reported diarrhea by urbanicity, maternal education level, household wealth, and district of residence. Increasing access (100% change) to improved water sources, sanitation, and hygiene facilities reduced population-level prevalence of childhood diarrhea by 8.2% (95% CI: 4.1, 12.3), 5.5% (95% CI: 0.7, 9.8), and 5.2% (95% CI: 2.2, 8.1), respectively. In stratified analyses, increased access to improved water sources and hygiene facilities was associated with decreased prevalence of diarrhea, with the largest reduction in rural areas and households with lower maternal education and lower wealth. Our findings suggest targeted WASH implementation in Peru is needed in rural areas and among lower socioeconomic-status households. In addition, even low levels of change in overall WASH access may decrease diarrhea prevalence.
Collapse
Affiliation(s)
- Rudy Patrick
- 1Department of Medicine, University of California, San Diego, La Jolla, California
| | - Sara McElroy
- 2Department of Family Medicine and Public Health, University of California, San Diego, La Jolla, California.,3Scripps Institution of Oceanography, University of California, San Diego, La Jolla, California
| | - Lara Schwarz
- 2Department of Family Medicine and Public Health, University of California, San Diego, La Jolla, California.,3Scripps Institution of Oceanography, University of California, San Diego, La Jolla, California
| | - Georgia Kayser
- 2Department of Family Medicine and Public Health, University of California, San Diego, La Jolla, California
| | - Tarik Benmarhnia
- 2Department of Family Medicine and Public Health, University of California, San Diego, La Jolla, California.,3Scripps Institution of Oceanography, University of California, San Diego, La Jolla, California
| |
Collapse
|
21
|
Galezzo MA, Günther WMR, Diaz-Quijano FA, Susa MR. Factors associated with diarrheal disease in the rural Caribbean region of Colombia. Rev Saude Publica 2020; 54:90. [PMID: 33027343 PMCID: PMC7524207 DOI: 10.11606/s1518-8787.2020054002054] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2019] [Accepted: 11/23/2019] [Indexed: 11/21/2022] Open
Abstract
OBJECTIVE: To analyze factors associated with diarrheal disease in the rural Caribbean region of Colombia. METHOD: A cross-sectional study conducted in the rural area of the Cesar Department, Colombia, between November 2017 and June 2018. Self-reported cases of diarrheal disease were surveyed, and water samples from 42 households were collected and analyzed. Descriptive statistics were employed in the analysis of socioeconomic status, environmental and sanitary conditions, and we evaluated their association with the diarrheal disease using the Poisson regression models. Each model was adjusted with variables suggested by specific directed acyclic graphs. RESULTS: Poor water supply conditions, hygiene and basic sanitation were reported in the study area. All water samples were classified either as high risk for health problems or unfit for human consumption. The diarrheal disease had a prevalence of 7.5% across all ages and of 23.5% in children under five years old. The variables rainy season (PR = 0.24; 95%CI 0.07–0.85), children under five years old (PR = 4.05; 95%CI 1.70–9.68), water from deep wells (PR = 16.90; 95%CI 2.45–116.67), water from artificial ponds (PR = 11.47; 95%CI 1.27–103.29), toilets availability (PRA = 0.23; 95%CI 0.06–0.96), and swine presence (PR = 0.20; 95%CI 0.05–0.74) were significantly associated with the occurrence of diarrheal disease. CONCLUSION: Water supply, hygiene and basic sanitation conditions have been associated with the diarrheal disease, affecting almost a quarter of the population under five years old. There is an urge for the design of effective policies that improve environmental and sanitation conditions in rural areas.
Collapse
Affiliation(s)
- Maria-Angelica Galezzo
- Universidad de los Andes. Centro de Investigaciones en Ingeniería Ambiental. Departamento de Ingeniería Civil y Ambiental. Bogotá, DC, Colombia
| | - Wanda Maria Risso Günther
- Universidade de São Paulo. Laboratório de Gestão Ambiental, Inovação e Sustentabilidade. São Paulo, SP, Brasil
| | - Fredi Alexander Diaz-Quijano
- Universidade de São Paulo. Faculdade de Saúde Pública. Laboratório de Inferência Causal em Epidemiologia. São Paulo, SP, Brasil
| | - Manuel Rodriguez Susa
- Universidad de los Andes. Centro de Investigaciones en Ingeniería Ambiental. Departamento de Ingeniería Civil y Ambiental. Bogotá, DC, Colombia
| |
Collapse
|
22
|
Mousa A, Al-Taiar A, Anstey NM, Badaut C, Barber BE, Bassat Q, Challenger JD, Cunnington AJ, Datta D, Drakeley C, Ghani AC, Gordeuk VR, Grigg MJ, Hugo P, John CC, Mayor A, Migot-Nabias F, Opoka RO, Pasvol G, Rees C, Reyburn H, Riley EM, Shah BN, Sitoe A, Sutherland CJ, Thuma PE, Unger SA, Viwami F, Walther M, Whitty CJM, William T, Okell LC. The impact of delayed treatment of uncomplicated P. falciparum malaria on progression to severe malaria: A systematic review and a pooled multicentre individual-patient meta-analysis. PLoS Med 2020; 17:e1003359. [PMID: 33075101 PMCID: PMC7571702 DOI: 10.1371/journal.pmed.1003359] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/13/2020] [Accepted: 08/26/2020] [Indexed: 12/16/2022] Open
Abstract
BACKGROUND Delay in receiving treatment for uncomplicated malaria (UM) is often reported to increase the risk of developing severe malaria (SM), but access to treatment remains low in most high-burden areas. Understanding the contribution of treatment delay on progression to severe disease is critical to determine how quickly patients need to receive treatment and to quantify the impact of widely implemented treatment interventions, such as 'test-and-treat' policies administered by community health workers (CHWs). We conducted a pooled individual-participant meta-analysis to estimate the association between treatment delay and presenting with SM. METHODS AND FINDINGS A search using Ovid MEDLINE and Embase was initially conducted to identify studies on severe Plasmodium falciparum malaria that included information on treatment delay, such as fever duration (inception to 22nd September 2017). Studies identified included 5 case-control and 8 other observational clinical studies of SM and UM cases. Risk of bias was assessed using the Newcastle-Ottawa scale, and all studies were ranked as 'Good', scoring ≥7/10. Individual-patient data (IPD) were pooled from 13 studies of 3,989 (94.1% aged <15 years) SM patients and 5,780 (79.6% aged <15 years) UM cases in Benin, Malaysia, Mozambique, Tanzania, The Gambia, Uganda, Yemen, and Zambia. Definitions of SM were standardised across studies to compare treatment delay in patients with UM and different SM phenotypes using age-adjusted mixed-effects regression. The odds of any SM phenotype were significantly higher in children with longer delays between initial symptoms and arrival at the health facility (odds ratio [OR] = 1.33, 95% CI: 1.07-1.64 for a delay of >24 hours versus ≤24 hours; p = 0.009). Reported illness duration was a strong predictor of presenting with severe malarial anaemia (SMA) in children, with an OR of 2.79 (95% CI:1.92-4.06; p < 0.001) for a delay of 2-3 days and 5.46 (95% CI: 3.49-8.53; p < 0.001) for a delay of >7 days, compared with receiving treatment within 24 hours from symptom onset. We estimate that 42.8% of childhood SMA cases and 48.5% of adult SMA cases in the study areas would have been averted if all individuals were able to access treatment within the first day of symptom onset, if the association is fully causal. In studies specifically recording onset of nonsevere symptoms, long treatment delay was moderately associated with other SM phenotypes (OR [95% CI] >3 to ≤4 days versus ≤24 hours: cerebral malaria [CM] = 2.42 [1.24-4.72], p = 0.01; respiratory distress syndrome [RDS] = 4.09 [1.70-9.82], p = 0.002). In addition to unmeasured confounding, which is commonly present in observational studies, a key limitation is that many severe cases and deaths occur outside healthcare facilities in endemic countries, where the effect of delayed or no treatment is difficult to quantify. CONCLUSIONS Our results quantify the relationship between rapid access to treatment and reduced risk of severe disease, which was particularly strong for SMA. There was some evidence to suggest that progression to other severe phenotypes may also be prevented by prompt treatment, though the association was not as strong, which may be explained by potential selection bias, sample size issues, or a difference in underlying pathology. These findings may help assess the impact of interventions that improve access to treatment.
Collapse
Affiliation(s)
- Andria Mousa
- MRC Centre for Global Infectious Disease Analysis, Department of Infectious Disease Epidemiology, Imperial College London, London, United Kingdom
- * E-mail:
| | - Abdullah Al-Taiar
- School of Community & Environmental Health, College of Health Sciences, Old Dominion University, Norfolk, Virginia, United States of America
| | - Nicholas M. Anstey
- Global Health Division, Menzies School of Health Research and Charles Darwin University, Darwin, Northern Territory, Australia
- Division of Medicine, Royal Darwin Hospital, Darwin, Northern Territory, Australia
| | - Cyril Badaut
- Unité de Biothérapie Infectieuse et Immunité, Institut de Recherche Biomédicale des Armées, Brétigny-sur-Orge, France
- Unité des Virus Emergents (UVE: Aix-Marseille Univ—IRD 190—Inserm 1207—IHU Méditerranée Infection), Marseille, France
| | - Bridget E. Barber
- Global Health Division, Menzies School of Health Research and Charles Darwin University, Darwin, Northern Territory, Australia
- QIMR Berghofer Medical Research Institute, Brisbane, Queensland, Australia
| | - Quique Bassat
- ISGlobal, Hospital Clínic, Universitat de Barcelona, Barcelona, Spain
- Centro de Investigação em Saúde de Manhiça (CISM), Maputo, Mozambique
- ICREA, Barcelona, Spain
- Pediatric Infectious Diseases Unit, Pediatrics Department, Hospital Sant Joan de Déu (University of Barcelona), Barcelona, Spain
- Consorcio de Investigación Biomédica en Red de Epidemiología y Salud Pública (CIBERESP), Madrid, Spain
| | - Joseph D. Challenger
- MRC Centre for Global Infectious Disease Analysis, Department of Infectious Disease Epidemiology, Imperial College London, London, United Kingdom
| | - Aubrey J. Cunnington
- Section of Paediatric Infectious Disease, Department of Infectious Disease, Imperial College London, United Kingdom
| | - Dibyadyuti Datta
- Ryan White Center for Pediatric Infectious Disease and Global Health, Department of Pediatrics, Indiana University School of Medicine, Indianapolis, Indiana, United States of America
| | - Chris Drakeley
- Faculty of Infectious and Tropical Diseases, London School of Hygiene & Tropical Medicine, London, United Kingdom
| | - Azra C. Ghani
- MRC Centre for Global Infectious Disease Analysis, Department of Infectious Disease Epidemiology, Imperial College London, London, United Kingdom
| | - Victor R. Gordeuk
- Sickle Cell Center, Department of Medicine, University of Illinois at Chicago, Chicago, Illinois, United States of America
| | - Matthew J. Grigg
- Global Health Division, Menzies School of Health Research and Charles Darwin University, Darwin, Northern Territory, Australia
| | - Pierre Hugo
- Medicines for Malaria Venture, Geneva, Switzerland
| | - Chandy C. John
- Ryan White Center for Pediatric Infectious Disease and Global Health, Department of Pediatrics, Indiana University School of Medicine, Indianapolis, Indiana, United States of America
| | - Alfredo Mayor
- ISGlobal, Hospital Clínic, Universitat de Barcelona, Barcelona, Spain
- Centro de Investigação em Saúde de Manhiça (CISM), Maputo, Mozambique
- Consorcio de Investigación Biomédica en Red de Epidemiología y Salud Pública (CIBERESP), Madrid, Spain
| | | | - Robert O. Opoka
- Department of Paediatrics and Child Health, Makerere University School of Medicine, Kampala, Uganda
| | - Geoffrey Pasvol
- Imperial College London, Department of Life Sciences, London, United Kingdom
| | - Claire Rees
- Centre for Global Public Health, Institute of Population Health Sciences, Barts & The London School of Medicine & Dentistry, London, United Kingdom
| | - Hugh Reyburn
- Faculty of Infectious and Tropical Diseases, London School of Hygiene & Tropical Medicine, London, United Kingdom
| | - Eleanor M. Riley
- Faculty of Infectious and Tropical Diseases, London School of Hygiene & Tropical Medicine, London, United Kingdom
- Institute of Immunology and Infection Research, School of Biological Sciences, University of Edinburgh, Edinburgh, United Kingdom
| | - Binal N. Shah
- Sickle Cell Center, Department of Medicine, University of Illinois at Chicago, Chicago, Illinois, United States of America
| | - Antonio Sitoe
- Centro de Investigação em Saúde de Manhiça (CISM), Maputo, Mozambique
| | - Colin J. Sutherland
- Faculty of Infectious and Tropical Diseases, London School of Hygiene & Tropical Medicine, London, United Kingdom
| | | | - Stefan A. Unger
- Department of Child Life and Health, University of Edinburgh, United Kingdom
- Department of Respiratory Medicine, Royal Hospital for Sick Children, Edinburgh, United Kingdom
| | - Firmine Viwami
- Institut de Recherche Clinique du Bénin (IRCB), Cotonou, Benin
| | - Michael Walther
- Medical Research Council Unit, Fajara, The Gambia at the London School of Hygiene and Tropical Medicine, Fajara, The Gambia
| | - Christopher J. M. Whitty
- Faculty of Infectious and Tropical Diseases, London School of Hygiene & Tropical Medicine, London, United Kingdom
| | - Timothy William
- Infectious Diseases Society Sabah-Menzies School of Health Research Clinical Research Unit, Kota Kinabalu, Sabah, Malaysia
- Gleneagles Hospital, Kota Kinabalu, Sabah, Malaysia
| | - Lucy C. Okell
- MRC Centre for Global Infectious Disease Analysis, Department of Infectious Disease Epidemiology, Imperial College London, London, United Kingdom
| |
Collapse
|
23
|
Goddard FGB, Pickering AJ, Ercumen A, Brown J, Chang HH, Clasen T. Faecal contamination of the environment and child health: a systematic review and individual participant data meta-analysis. Lancet Planet Health 2020; 4:e405-e415. [PMID: 32918886 PMCID: PMC7653404 DOI: 10.1016/s2542-5196(20)30195-9] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2020] [Revised: 07/21/2020] [Accepted: 07/22/2020] [Indexed: 05/10/2023]
Abstract
BACKGROUND Exposure to faecal contamination is believed to be associated with child diarrhoea and possibly stunting; however, few studies have explicitly measured the association between faecal contamination and health. We aimed to assess individual participant data (IPD) across multiple trials and observational studies to quantify the relationship for common faecal-oral transmission pathways. METHODS We did a systematic review and meta-analysis of IPD from studies identified in an electronic search of PubMed, Web of Science, and Embase on May 21, 2018. The search was done in English, but full texts published in French, Portuguese, and Spanish were also reviewed. Eligible studies quantified (1) household-level faecal indicator bacteria concentrations along common faecal-oral transmission pathways of drinking water, soil, or food, on children's hands or fomites, or fly densities in food preparation areas; and (2) individual-level diarrhoea or linear growth measures for children younger than 5 years in low-income and middle-income countries. For the diarrhoea analysis, all definitions of diarrhoea were eligible but studies were excluded if they used a recall period longer than 7 days. For the linear growth analysis (using height-for-age Z scores [HAZ]), cross-sectional studies were excluded, because of the absence of longitudinal environmental contamination data measured before the growth outcomes. We used multilevel generalised mixed-effects models to estimate the odds ratio (OR) for diarrhoea and the difference in HAZ scores for individual studies associated with a 1-log10 higher measure of faecal contamination. Estimates from each study were combined under a random-effects meta-analysis framework. The study protocol was pre-registered with PROSPERO (CRD42018102114). FINDINGS From 72 eligible studies, we included IPD for 20 studies in the meta-analyses, totalling 54 225 diarrhoea or linear growth observations matched to faecal indicator bacteria concentrations in drinking water, and a further 35 010 observations with faecal contamination data for the other transmission pathways. Child diarrhoea was associated with 1-log10 higher faecal indicator bacteria concentrations in drinking water (OR 1·09, 95% CI 1·04 to 1·13; p=0·0002, I2=34%, 95% CI 0 to 62) and on children's hands (1·11, 1·02 to 1·22; p=0·021, I2=0%, 0 to 71). Lower HAZ scores were associated with 1-log10 higher median faecal indicator bacteria concentrations in drinking water (HAZ -0·04, 95% CI -0·06 to -0·01; p=0·0054; I2=19%, 95% CI 0 to 63) and on fomites (-0·06, -0·12 to 0·00; p=0·044, I2=57%, 0 to 90). INTERPRETATION Although summary measures from individual studies often report little or no effect of measured faecal contamination on child health, this multi-study IPD analysis indicates that household faecal indicator bacteria concentrations are associated with important adverse health outcomes in young children. Improved direct measures of exposure and enteric pathogens could help to better characterise the relationship and inform intervention design in future studies. FUNDING None.
Collapse
Affiliation(s)
- Frederick G B Goddard
- Gangarosa Department of Environmental Health, Rollins School of Public Health, Emory University, Atlanta, GA, USA; Department of Epidemiology, Harvard TH Chan School of Public Health, Boston, MA, USA.
| | - Amy J Pickering
- Department of Civil and Environmental Engineering, School of Engineering, Tufts University, Medford, MA, USA
| | - Ayse Ercumen
- Department of Forestry and Environmental Resources, North Carolina State University, Raleigh, NC, USA
| | - Joe Brown
- School of Civil and Environmental Engineering, Georgia Institute of Technology, Atlanta, GA, USA
| | - Howard H Chang
- Department of Biostatistics and Bioinformatics, Rollins School of Public Health, Emory University, Atlanta, GA, USA
| | - Thomas Clasen
- Gangarosa Department of Environmental Health, Rollins School of Public Health, Emory University, Atlanta, GA, USA
| |
Collapse
|
24
|
Reissmann DR. Methodological considerations when measuring oral health-related quality of life. J Oral Rehabil 2020; 48:233-245. [PMID: 32325537 DOI: 10.1111/joor.12983] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2019] [Revised: 03/11/2020] [Accepted: 04/16/2020] [Indexed: 11/27/2022]
Abstract
BACKGROUND Dental patient-reported outcomes (dPROs) and their measures, dPROMs, are fundamental for evidence-based dentistry. However when selecting, applying and evaluating an instrument with a focus on OHRQoL assessment for adults, several methodological considerations are essential to derive valid and meaningful results. METHODS In this review article, criteria for selecting the appropriate OHRQoL instrument, aspects of administering the instrument and how to evaluate resulting scores of single and multiple assessments are presented and critically assessed. RESULTS Oral disease-generic and dimension-generic instruments capturing the entire construct OHRQoL allow for best comparability of findings across different diseases, settings and populations, with the Oral Health Impact Profile (OHIP) being the most often used and methodologically best investigated one. It is available in several versions with the 5-item version being the one with the lowest burden for the patient. Responses are given on a 5-point ordinal rating scale, the recommended response scale for dPROMs. A 7-day recall period allows for assessment of short-term effects. Clinically relevant effects of item or instrument order or administration method on OHIP scores do not seem to be likely. OHIP summary and dimension scores can be compared to norms from general population or different patient populations. Change scores should be set into context with the minimal important difference of the instrument. CONCLUSION OHIP-5 has greatest potential to be used across all settings for assessment and evaluation of OHRQoL in adults. It allows a comprehensive characterising of patients suffering from oral diseases and of this impact using OHRQoL dimensions.
Collapse
Affiliation(s)
- Daniel R Reissmann
- Department of Prosthetic Dentistry, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| |
Collapse
|
25
|
Use of antibacterials in the management of symptoms of acute respiratory tract infections among children under five years in Gulu, northern Uganda: Prevalence and determinants. PLoS One 2020; 15:e0235164. [PMID: 32574206 PMCID: PMC7310710 DOI: 10.1371/journal.pone.0235164] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2019] [Accepted: 06/09/2020] [Indexed: 11/21/2022] Open
Abstract
Inappropriate use of antibacterials is a major public health challenge as it can promote emergence of resistance, wastage of financial resources, morbidity and mortality. In this study, we determined the prevalence and factors associated with antibacterial use in managing symptoms of acute respiratory tract infections (ARIs) in households in rural communities of Gulu district, northern Uganda. A cross-sectional study was conducted among households selected using multi-stage sampling. Data were collected through interviews with care-givers of children under five years, using a structured interviewer administered questionnaire. Out of the 856 children who had symptoms of ARIs, 515 (60.2%; CI: 54.5%-65.6%) were treated with antibacterials. The most commonly used antibacterials were amoxicillin (55.2%, n = 358), cotrimoxazole (15.4%, n = 100) and metronidazole (11.4%, n = 74). The determinants of antibacterial use included; getting treatment from a health facility (AOR: 1.85, CI: 1.34–2.56, P < 0.001), households located in peri-urban area (AOR: 2.54, CI: 1.34–4.84, P = 0.005), and a child having cough (AOR: 7.02, CI: 4.36–11.31, P < 0.001). The prevalence of antibacterial use among children under five years with symptoms of ARIs is high in communities of Gulu district, northern Uganda. Getting treatment from a health facility, if a household was located in a peri-urban area and having a cough are positive predictors of antibacterial use. There is need for targeted education on appropriate antibacterial use in rural communities and hospital settings where over prescription is most likely especially in treating symptoms of ARIs among children under five years.
Collapse
|
26
|
Lowenstein C, Vasco K, Sarzosa S, Salinas L, Torres A, Perry MJ, Simmens SJ, Trueba G, Eisenberg JNS, Graham JP. Determinants of Childhood Zoonotic Enteric Infections in a Semirural Community of Quito, Ecuador. Am J Trop Med Hyg 2020; 102:1269-1278. [PMID: 32228797 PMCID: PMC7253092 DOI: 10.4269/ajtmh.19-0690] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2019] [Accepted: 02/09/2020] [Indexed: 12/13/2022] Open
Abstract
Domestic animals in the household environment have the potential to affect a child's carriage of zoonotic enteric pathogens and risk of diarrhea. This study examines the risk factors associated with pediatric diarrhea and carriage of zoonotic enteric pathogens among children living in communities where smallholder livestock production is prevalent. We conducted an observational study of children younger than 5 years that included the analysis of child (n = 306) and animal (n = 480) fecal samples for Campylobacter spp., atypical enteropathogenic Escherichia coli, Shiga toxin-producing E. coli, Salmonella spp., Yersinia spp., Cryptosporidium parvum, and Giardia lamblia. Among these seven pathogens, Giardia was the most commonly identified pathogen among children and animals in the same household, most of which was found in child-dog pairs. Campylobacter spp. was also relatively common within households, particularly among child-chicken and child-guinea pig pairs. We used multivariable Poisson regression models to assess risk factors associated with a child being positive for at least one zoonotic enteric pathogen or having diarrhea during the last week. Children who interacted with domestic animals-a behavior reported by nearly three-quarters of households owning animals-were at an increased risk of colonization with at least one zoonotic enteric pathogen (prevalence ratio [PR] = 1.56, 95% CI: 1.00-2.42). The risk of diarrhea in the last seven days was elevated but not statistically significant (PR = 2.27, CI: 0.91, 5.67). Interventions that aim to reduce pediatric exposures to enteric pathogens will likely need to be incorporated with approaches that remove animal fecal contamination from the domestic environment and encourage behavior change aimed at reducing children's contact with animal feces through diverse exposure pathways.
Collapse
Affiliation(s)
| | - Karla Vasco
- Colegio de Ciencias Biologicas y Ambientales, Microbiology Institute, Universidad San Francisco de Quito, Quito, Ecuador
| | - Soledad Sarzosa
- Colegio de Ciencias Biologicas y Ambientales, Microbiology Institute, Universidad San Francisco de Quito, Quito, Ecuador
| | - Liseth Salinas
- Colegio de Ciencias Biologicas y Ambientales, Microbiology Institute, Universidad San Francisco de Quito, Quito, Ecuador
| | - Andrea Torres
- Colegio de Ciencias Biologicas y Ambientales, Microbiology Institute, Universidad San Francisco de Quito, Quito, Ecuador
| | - Melissa J. Perry
- Department of Environmental and Occupational Health, Milken Institute School of Public Health, The George Washington University, Washington, District of Columbia
| | - Samuel J. Simmens
- Department of Biostatistics and Bioinformatics, Milken Institute School of Public Health, The George Washington University, Washington, District of Columbia
| | - Gabriel Trueba
- Colegio de Ciencias Biologicas y Ambientales, Microbiology Institute, Universidad San Francisco de Quito, Quito, Ecuador
| | - Joseph N. S. Eisenberg
- Department of Epidemiology, School of Public Health, University of Michigan, Ann Arbor, Michigan
| | - Jay P. Graham
- University of California, Berkeley School of Public Health, Berkeley, California
| |
Collapse
|
27
|
Pickering AJ, Crider Y, Sultana S, Swarthout J, Goddard FG, Anjerul Islam S, Sen S, Ayyagari R, Luby SP. Effect of in-line drinking water chlorination at the point of collection on child diarrhoea in urban Bangladesh: a double-blind, cluster-randomised controlled trial. LANCET GLOBAL HEALTH 2020; 7:e1247-e1256. [PMID: 31402005 DOI: 10.1016/s2214-109x(19)30315-8] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/13/2018] [Revised: 05/22/2019] [Accepted: 06/11/2019] [Indexed: 10/26/2022]
Abstract
BACKGROUND Previous blinded trials of household water treatment interventions in low-income settings have failed to detect a reduction in child diarrhoea. Technological advances have enabled the development of automated in-line chlorine dosers that can disinfect drinking water without electricity, while also allowing users to continue their typical water collection practices. We aimed to evaluate the effect of installing novel passive chlorination devices at shared water points on child diarrhoea prevalence in low-income, densely populated communities in urban Bangladesh. METHODS In this double-blind cluster-randomised controlled trial, 100 shared water points (clusters) in two low-income urban communities in Bangladesh were randomly assigned (1:1) to have their drinking water automatically chlorinated at the point of collection by a solid tablet chlorine doser (intervention group) or to be treated by a visually identical doser that supplied vitamin C (active control group). The trial followed an open cohort design; all children younger than 5 years residing in households accessing enrolled water points were measured every 2-3 months during a 14-month follow-up period (children could migrate into or out of the cluster). The primary outcome was caregiver-reported child diarrhoea (≥3 loose or watery stools in a 24-h period [WHO criteria]) with a 1-week recall, including all available childhood observations in the analyses. This trial is registered with ClinicalTrials.gov, number NCT02606981, and is completed. FINDINGS Between July 5, 2015, and Nov 11, 2015, 100 water points with 920 eligible households were enrolled into the study and randomly assigned to the treatment (50 water points; 517 children at baseline; 2073 child observations included in the primary analysis) or control groups (50; 519; 2154). Children in the treatment group had less WHO-defined diarrhoea than did children in the control group (control 216 [10·0%] of 2154; treatment 156 [7·5%] of 2073; prevalence ratio 0·77, 95% CI 0·65-0·91). Drinking water at the point of collection at treatment taps had detectable free chlorine residual 83% (mean 0·37 ppm) of the time compared with 0% at control taps (0·00 ppm). INTERPRETATION Passive chlorination at the point of collection could be an effective and scalable strategy in low-income urban settings for reducing child diarrhoea and for achieving global progress towards Sustainable Development Goal 6.1 to attain universal access to safe and affordable drinking water. Targeting a low chlorine residual (<0·5 ppm) in treated water can increase taste acceptability of chlorinated drinking water while still reducing the risk of diarrhoea. FUNDING The World Bank.
Collapse
Affiliation(s)
- Amy J Pickering
- Civil and Environmental Engineering, Tufts University, Medford, MA, USA; Civil and Environmental Engineering, Stanford University, Stanford, CA, USA.
| | - Yoshika Crider
- Civil and Environmental Engineering, Stanford University, Stanford, CA, USA; Energy and Resources Group, University of California Berkeley, Berkeley, CA, USA
| | - Sonia Sultana
- International Centre for Diarrhoeal Diseases Research, Bangladesh (icddr,b), Dhaka, Bangladesh
| | - Jenna Swarthout
- Civil and Environmental Engineering, Tufts University, Medford, MA, USA; Civil and Environmental Engineering, Stanford University, Stanford, CA, USA
| | - Frederick Gb Goddard
- Civil and Environmental Engineering, Stanford University, Stanford, CA, USA; Emory University, Atlanta, GA, USA
| | - Syed Anjerul Islam
- Civil and Environmental Engineering, Tufts University, Medford, MA, USA; International Centre for Diarrhoeal Diseases Research, Bangladesh (icddr,b), Dhaka, Bangladesh
| | - Shreyan Sen
- Civil and Environmental Engineering, Tufts University, Medford, MA, USA
| | - Raga Ayyagari
- Civil and Environmental Engineering, Tufts University, Medford, MA, USA
| | - Stephen P Luby
- Woods Institute for the Environment, Stanford University, Stanford, CA, USA
| |
Collapse
|
28
|
Epstein A, Benmarhnia T, Weiser SD. Drought and Illness among Young Children in Uganda, 2009-2012. Am J Trop Med Hyg 2020; 102:644-648. [PMID: 31933457 DOI: 10.4269/ajtmh.19-0412] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023] Open
Abstract
Changing precipitation patterns resulting from climate change are likely to have deleterious effects on health. We examined historical relationships between precipitation and diarrhea, cough, and fever among children aged 0-24 months in Uganda, a drought-prone region. Using data from the Uganda National Panel Survey from 2009 to 2012 (2,324 observations), we specified logistic regression models evaluating the relationships between deviations from annual and 30-day precipitation and caregiver-reported diarrhea, cough, and fever, adjusting for sociodemographic characteristics and including enumeration of area-fixed effects. Nonlinearities were assessed using restricted cubic splines. We observed nonlinear (J-shaped) relationships between deviations from annual precipitation and the three child illness outcomes. These J-shaped relationships represented steep reductions in illness with increasing precipitation at lower levels of rainfall and a leveling off at higher levels, with a small increase at higher levels. We did not find evidence for a relationship between 30-day precipitation and childhood illness. Trends of reduced rainfall in Uganda are likely having negative effects on child health.
Collapse
Affiliation(s)
- Adrienne Epstein
- Department of Epidemiology and Biostatistics, University of California, San Francisco, San Francisco, California
| | - Tarik Benmarhnia
- Department of Family Medicine and Public Health, Scripps Institution of Oceanography, University of California, San Diego, La Jolla, California
| | - Sheri D Weiser
- Department of Medicine, University of California, San Francisco, San Francisco, California
| |
Collapse
|
29
|
Overbey KN, Schwab KJ, Exum NG. Comparison of 1-week and 2-week recall periods for caregiver-reported diarrhoeal illness in children, using nationally representative household surveys. Int J Epidemiol 2020; 48:1228-1239. [PMID: 30907423 PMCID: PMC6693818 DOI: 10.1093/ije/dyz043] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/04/2019] [Indexed: 11/14/2022] Open
Abstract
BACKGROUND Diarrhoeal outcomes in children are often ascertained using caregiver-reported symptoms, which are subject to a variety of biases and methodological challenges. One source of bias is the time window used for reporting diarrhoeal illness and the ability of caregivers to accurately recall episodes in children. METHODS Diarrhoea period prevalence in children under five was determined using two similarly administered, nationally representative household surveys: Performance Monitoring and Accountability 2020 (PMA2020) (1-week recall, N = 14 603) and Demographic and Health Surveys (DHS) (2-week recall, N = 66 717). Countries included in the analysis were the Democratic Republic of the Congo, Ethiopia, Ghana, Kenya and Uganda. Diarrhoea period prevalence estimates were compared and water, sanitation and hygiene risk factors were analysed. RESULTS Childhood diarrhoea prevalence using 1-week recall (PMA2020) pooled across countries was 21.4% [95% confidence interval (CI): 19.9%, 22.9%] versus 16.0% using 2-week recall (DHS) (95% CI: 15.4%, 16.5%). In stratified analyses for all five countries, the number of diarrhoea cases detected was consistently higher using 1-week recall versus 2-week recall. The key risk factors identified in the PMA2020 data that were not associated with diarrhoeal episodes or were attenuated in the DHS data included: the main sanitation classifications for households, disposal method used for child faeces, number of household members and wealth quintiles. CONCLUSIONS For nationally representative household surveys assessing childhood diarrhoea period prevalence, a 2-week recall period may underestimate diarrhoea prevalence compared with a 1-week period. The household sanitation facility and practices remain key risk factors for diarrhoeal disease in children under five.
Collapse
Affiliation(s)
- Katie N Overbey
- Department of Environmental Health and Engineering, Johns Hopkins Bloomberg School of Public Health, Johns Hopkins University, Baltimore, MD, USA
| | - Kellogg J Schwab
- Department of Environmental Health and Engineering, Johns Hopkins Bloomberg School of Public Health, Johns Hopkins University, Baltimore, MD, USA
| | - Natalie G Exum
- Department of Environmental Health and Engineering, Johns Hopkins Bloomberg School of Public Health, Johns Hopkins University, Baltimore, MD, USA
| |
Collapse
|
30
|
Ercumen A, Prottas C, Harris A, Dioguardi A, Dowd G, Guiteras R. Poultry Ownership Associated with Increased Risk of Child Diarrhea: Cross-Sectional Evidence from Uganda. Am J Trop Med Hyg 2020; 102:526-533. [PMID: 31971130 PMCID: PMC7056431 DOI: 10.4269/ajtmh.19-0012] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2019] [Accepted: 12/10/2019] [Indexed: 01/30/2023] Open
Abstract
Domestic animals have been associated with enteric infections in young children and can also be carriers of respiratory viruses. We conducted a cross-sectional assessment of health outcomes in children aged < 5 years associated with animal presence among 793 rural households in Uganda. We recorded the 2-week prevalence of diarrhea and respiratory infections in children, and the number of cows, poultry, sheep/goats, and pigs in the household. We used generalized linear models with robust standard errors to estimate the prevalence ratio (PR) for diarrhea and respiratory infections associated with households owning the above- versus below-median number of animals. We conducted unadjusted and adjusted analyses controlling for socioeconomic, water, sanitation, and hygiene indicators. Children in households with the above-median number (> 5) of poultry had 83% higher diarrhea prevalence than those with ≤ 5 poultry (adjusted PR = 1.83 [1.04, 3.23], P = 0.04). Children in households with the above-median number (> 2) of cows had 48% lower prevalence of respiratory infection than those with ≤ 2 cows (adjusted PR = 0.52 [0.35, 0.76], P < 0.005). There were no other significant associations between domestic animals and child health. Studies should assess if barring chickens from indoor living quarters and sanitary disposal of chicken and other animal feces can reduce childhood zoonotic infections.
Collapse
Affiliation(s)
- Ayse Ercumen
- Forestry and Environmental Resources, North Carolina State University, Raleigh, North Carolina
| | | | - Angela Harris
- Civil, Construction and Environmental Engineering, North Carolina State University, Raleigh, North Carolina
| | | | - Greg Dowd
- Agricultural and Resource Economics, North Carolina State University, Raleigh, North Carolina
| | - Raymond Guiteras
- Agricultural and Resource Economics, North Carolina State University, Raleigh, North Carolina
| |
Collapse
|
31
|
Adu-Afarwuah S, Young RR, Lartey A, Okronipa H, Ashorn P, Ashorn U, Oaks BM, Dewey KG. Supplementation with Small-Quantity Lipid-Based Nutrient Supplements Does Not Increase Child Morbidity in a Semiurban Setting in Ghana: A Secondary Outcome Noninferiority Analysis of the International Lipid-Based Nutrient Supplements (iLiNS)-DYAD Randomized Controlled Trial. J Nutr 2020; 150:382-393. [PMID: 31603205 PMCID: PMC7722352 DOI: 10.1093/jn/nxz243] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2019] [Revised: 07/26/2019] [Accepted: 09/11/2019] [Indexed: 11/25/2022] Open
Abstract
BACKGROUND Adequate knowledge about the safety of consumption of small-quantity lipid-based nutrient supplements (SQ-LNSs) is needed. OBJECTIVE We aimed to test the hypothesis that SQ-LNS consumption is noninferior to control with respect to child morbidity. METHODS Women (n = 1320) ≤20 wk pregnant were assigned to iron and folic acid until delivery with no supplementation for offspring; or multiple micronutrient supplements until 6 mo postpartum with no supplementation for offspring; or SQ-LNSs until 6 mo postpartum, and SQ-LNSs for offspring (6 mg Fe/d) from 6 to 18 mo of age [the lipid-based nutrient supplement (LNS) group]. We assessed noninferiority (margin ≤20%) between any 2 groups during 0-6 mo of age, and between the non-LNS and LNS groups during 6-18 mo of age for caregiver-reported acute respiratory infection, diarrhea, gastroenteritis, fever/suspected malaria, poor appetite, and "other illnesses." RESULTS During 0-6 mo of age, 1197 infants contributed 190,503 infant-days. For all morbidity combined, overall mean incidence (per 100 infant-days) was 3.3 episodes, overall mean prevalence (percentage of infant-days) was 19.3%, and the 95% CIs of the incidence rate ratio (IRR) and longitudinal prevalence rate ratio (LPRR) between any 2 groups were ≤1.20. During 6-18 mo, there were 240,097 infant-days for the non-LNS group and 118,698 for the LNS group. For all morbidity combined, group mean incidences were 4.3 and 4.3, respectively (IRR: 1.0; 95% CI: 1.0, 1.1), and mean prevalences were 28.2% and 29.3%, respectively (LPRR: 1.0; 95% CI: 1.0, 1.1). Noninferiority was inconclusive for diarrhea, fever/suspected malaria, and poor appetite. CONCLUSIONS SQ-LNS consumption does not increase reported overall child morbidity in this population compared with the 2 other treatments.This trial was registered at clinicaltrials.gov as NCT00970866.
Collapse
Affiliation(s)
- Seth Adu-Afarwuah
- department of Nutrition and Food Science, University of Ghana, Legon, Accra, Ghana
| | - Rebecca R Young
- Program in International and Community Nutrition, Department of Nutrition, University of California, Davis, CA, USA
| | - Anna Lartey
- department of Nutrition and Food Science, University of Ghana, Legon, Accra, Ghana
| | - Harriet Okronipa
- department of Nutrition and Food Science, University of Ghana, Legon, Accra, Ghana
- Program in International and Community Nutrition, Department of Nutrition, University of California, Davis, CA, USA
| | - Per Ashorn
- Centre for Child Health Research, Tampere University Faculty of Medicine and Health Sciences and Tampere University Hospital, Tampere, Finland; and
| | - Ulla Ashorn
- Centre for Child Health Research, Tampere University Faculty of Medicine and Health Sciences and Tampere University Hospital, Tampere, Finland; and
| | - Brietta M Oaks
- Department of Nutrition and Food Sciences, University of Rhode Island, Kingston, RI, USA
| | - Kathryn G Dewey
- Program in International and Community Nutrition, Department of Nutrition, University of California, Davis, CA, USA
| |
Collapse
|
32
|
Berendes D, Andujar A, Barrios LC, Hill V. Associations Among School Absenteeism, Gastrointestinal and Respiratory Illness, and Income - United States, 2010-2016. MMWR-MORBIDITY AND MORTALITY WEEKLY REPORT 2020; 68:1201-1205. [PMID: 31945036 PMCID: PMC6973341 DOI: 10.15585/mmwr.mm6853a1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/05/2022]
|
33
|
McGuinness SL, O'Toole J, Ayton D, Giriyan A, Gaonkar CA, Vhaval R, Cheng AC, Leder K. Barriers and Enablers to Intervention Uptake and Health Reporting in a Water Intervention Trial in Rural India: A Qualitative Explanatory Study. Am J Trop Med Hyg 2020; 102:507-517. [PMID: 31933461 DOI: 10.4269/ajtmh.19-0486] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Consumption of unsafe drinking water contributes to the global disease burden, necessitating identification and implementation of effective, acceptable, and sustainable water interventions in resource-limited settings. In a quantitative stepped-wedge cluster randomized trial of a community-based water intervention in rural India, we identified low rates of intervention uptake and reported diarrhea. To better understand and explain these findings, we performed a qualitative study examining barriers and enablers to intervention uptake and health reporting using the COM-B model, where capabilities, opportunities, and motivators interact to generate behavior. We conducted 20 focus groups and one semi-structured interview with participants and four focus groups with data collectors. Multifactorial barriers to intervention uptake included distorted perceptions of water-related health effects, implementation issues that reduced treated water availability; convenience of, and preference for, alternative drinking water sources; delivery of water to plastic storage tanks (perceived as affecting water quality and taste); and resistance to change. Enablers included knowledge of water-related health risks, proximity to tanks, and social opportunity. Barriers to health reporting included variability in interpretation of illness, suspicion regarding the consequences of reporting disease, weariness with repeated questions, and perceived inaction on health data already provided; low survey implementation fidelity was also important. Enablers included surveyor initiatives to encourage reporting and a sense of social responsibility. This qualitative explanatory study allowed better understanding of our quantitative results. It also identified obstacles and facilitators to implementing and evaluating community water interventions, providing insight on how to achieve better intervention uptake and health reporting in future studies.
Collapse
Affiliation(s)
- Sarah L McGuinness
- School of Public Health and Preventive Medicine, Monash University, Melbourne, Australia
| | - Joanne O'Toole
- School of Public Health and Preventive Medicine, Monash University, Melbourne, Australia
| | - Darshini Ayton
- School of Public Health and Preventive Medicine, Monash University, Melbourne, Australia
| | - Asha Giriyan
- The Energy and Resources Institute (TERI), Panaji, India
| | | | | | - Allen C Cheng
- School of Public Health and Preventive Medicine, Monash University, Melbourne, Australia
| | - Karin Leder
- School of Public Health and Preventive Medicine, Monash University, Melbourne, Australia
| |
Collapse
|
34
|
Abuzerr S, Nasseri S, Yunesian M, Hadi M, Zinszer K, Mahvi AH, Nabizadeh R, Abu Mustafa A, Mohammed SH. Water, sanitation, and hygiene risk factors of acute diarrhea among children under five years in the Gaza Strip. JOURNAL OF WATER, SANITATION AND HYGIENE FOR DEVELOPMENT 2019. [DOI: 10.2166/washdev.2019.072] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
Abstract
This cross-sectional community household-based study aims to evaluate the water, sanitation, and hygiene facilities in the Gaza Strip and to investigate their associations with the occurrence of acute diarrhea among children under five years. A survey using a structured questionnaire was conducted on 1,857 households with an child under five years from August 2017 to June 2018. About 69.7% of heads of households reported a diarrheal episode among their children during the two months preceding the survey. Multivariable logistic regression showed that sewage water observed around the households was associated with an increased risk of acute diarrhea (AOR = 2.45; P < 0.001; 95% CI: 1.83–3.27). Nevertheless, the allocation of a special water tank for desalinated drinking water at home (AOR = 0.3; P = 0.02; 95% CI: 0.1–0.8), the connection of households to a closed sewerage system (AOR = 0.56; P < 0.001; 95% CI: 0.43–0.73), and handwashing practices before and after eating (AOR = 0.42; P = 0.003; 95% CI: 0.24–0.74 and AOR = 0.50; P = 0.03; 95% CI: 0.26–0.94, respectively), as well as using desalinated water sources for drinking purposes, were inversely associated with the incidence of acute diarrhea among children under five. Further improvements in the existing sewerage system and the intensification of sanitation and hygiene promotion programs at the household levels may reduce the risk of acute diarrhea among children under five years in the Gaza Strip.
Collapse
Affiliation(s)
- Samer Abuzerr
- Department of Environmental Health Engineering, School of Public Health, International Campus, Tehran University of Medical Sciences, Tehran, Iran
- School of Public Health, Department of Social and Preventive Medicine, University of Montreal, Montréal, Canada
| | - Simin Nasseri
- Department of Environmental Health Engineering, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
- Center for Water Quality Research (CWQR), Institute for Environmental Research (IER), Tehran University of Medical Sciences, Tehran, Iran
| | - Masud Yunesian
- Department of Environmental Health Engineering, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
- Department of Research Methodology and Data Analysis, Institute for Environmental Research, TUMS, Tehran, Iran
| | - Mahdi Hadi
- Center for Water Quality Research (CWQR), Institute for Environmental Research (IER), Tehran University of Medical Sciences, Tehran, Iran
| | - Kate Zinszer
- School of Public Health, Department of Social and Preventive Medicine, University of Montreal, Montréal, Canada
| | - Amir Hossein Mahvi
- Department of Environmental Health Engineering, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
- Center for Water Quality Research (CWQR), Institute for Environmental Research (IER), Tehran University of Medical Sciences, Tehran, Iran
| | - Ramin Nabizadeh
- Department of Environmental Health Engineering, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Ayman Abu Mustafa
- Department of Research, Directorate General of Human Resources Development, Ministry of Health, Gaza Strip, Palestine
| | - Shimels Hussien Mohammed
- Department of Community Nutrition, School of Nutritional Sciences and Dietetics, Tehran University of Medical Sciences, Tehran, Iran
| |
Collapse
|
35
|
Reese H, Routray P, Torondel B, Sinharoy SS, Mishra S, Freeman MC, Chang HH, Clasen T. Assessing longer-term effectiveness of a combined household-level piped water and sanitation intervention on child diarrhoea, acute respiratory infection, soil-transmitted helminth infection and nutritional status: a matched cohort study in rural Odisha, India. Int J Epidemiol 2019; 48:1757-1767. [PMID: 31363748 PMCID: PMC6929523 DOI: 10.1093/ije/dyz157] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/04/2019] [Indexed: 11/14/2022] Open
Abstract
BACKGROUND Open defecation is widespread in rural India, and few households have piped water connections. While government and other efforts have increased toilet coverage in India, and evaluations found limited immediate impacts on health, longer-term effects have not been rigorously assessed. METHODS We conducted a matched cohort study to assess the longer-term effectiveness of a combined household-level piped water and sanitation intervention implemented by Gram Vikas (an Indian NGO) in rural Odisha, India. Forty-five intervention villages were randomly selected from a list of those where implementation was previously completed at least 5 years before, and matched to 45 control villages. We conducted surveys and collected stool samples between June 2015 and October 2016 in households with a child <5 years of age (n = 2398). Health surveillance included diarrhoea (primary outcome), acute respiratory infection (ARI), soil-transmitted helminth infection, and anthropometry. RESULTS Intervention villages had higher improved toilet coverage (85% vs 18%), and increased toilet use by adults (74% vs 13%) and child faeces disposal (35% vs 6%) compared with control villages. There was no intervention association with diarrhoea [adjusted OR (aOR): 0.94, 95% confidence interval (CI): 0.74-1.20] or ARI. Compared with controls, children in intervention villages had lower helminth infection (aOR: 0.44, 95% CI: 0.18, 1.00) and improved height-for-age z scores (HAZ) (+0.17, 95% CI: 0.03-0.31). CONCLUSIONS This combined intervention, where household water connections were contingent on community-wide household toilet construction, was associated with improved HAZ, and reduced soil-transmitted helminth (STH) infection, though not reduced diarrhoea or ARI. Further research should explore the mechanism through which these heterogenous effects on health may occur.
Collapse
Affiliation(s)
- Heather Reese
- Department of Environmental Health, Rollins School of Public Health, Emory University, Atlanta, GA, USA
| | - Parimita Routray
- Environmental Health Group, London School of Hygiene and Tropical Medicine, London, UK
| | - Belen Torondel
- Environmental Health Group, London School of Hygiene and Tropical Medicine, London, UK
| | - Sheela S Sinharoy
- Department of Environmental Health, Rollins School of Public Health, Emory University, Atlanta, GA, USA
| | - Samir Mishra
- Kalinga Institute of Industrial Technology, Bhubaneswar, India
| | - Matthew C Freeman
- Department of Environmental Health, Rollins School of Public Health, Emory University, Atlanta, GA, USA
| | - Howard H Chang
- Department of Biostatistics and Bioinformatics, Rollins School of Public Health, Emory University, Atlanta, GA, USA
| | - Thomas Clasen
- Department of Environmental Health, Rollins School of Public Health, Emory University, Atlanta, GA, USA
- Environmental Health Group, London School of Hygiene and Tropical Medicine, London, UK
| |
Collapse
|
36
|
Svefors P, Sysoev O, Ekstrom EC, Persson LA, Arifeen SE, Naved RT, Rahman A, Khan AI, Selling K. Relative importance of prenatal and postnatal determinants of stunting: data mining approaches to the MINIMat cohort, Bangladesh. BMJ Open 2019; 9:e025154. [PMID: 31383692 PMCID: PMC6687011 DOI: 10.1136/bmjopen-2018-025154] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
INTRODUCTION WHO has set a goal to reduce the prevalence of stunted child growth by 40% by the year 2025. To reach this goal, it is imperative to establish the relative importance of risk factors for stunting to deliver appropriate interventions. Currently, most interventions take place in late infancy and early childhood. This study aimed to identify the most critical prenatal and postnatal determinants of linear growth 0-24 months and the risk factors for stunting at 2 years, and to identify subgroups with different growth trajectories and levels of stunting at 2 years. METHODS Conditional inference tree-based methods were applied to the extensive Maternal and Infant Nutrition Interventions in Matlab trial database with 309 variables of 2723 children, their parents and living conditions, including socioeconomic, nutritional and other biological characteristics of the parents; maternal exposure to violence; household food security; breast and complementary feeding; and measurements of morbidity of the mothers during pregnancy and repeatedly of their children up to 24 months of age. Child anthropometry was measured monthly from birth to 12 months, thereafter quarterly to 24 months. RESULTS Birth length and weight were the most critical factors for linear growth 0-24 months and stunting at 2 years, followed by maternal anthropometry and parental education. Conditions after birth, such as feeding practices and morbidity, were less strongly associated with linear growth trajectories and stunting at 2 years. CONCLUSION The results of this study emphasise the benefit of interventions before conception and during pregnancy to reach a substantial reduction in stunting.
Collapse
Affiliation(s)
- Pernilla Svefors
- Women's and Children's Health, Uppsala Universitet, Uppsala, Sweden
- Center for Epidemiology and Community Medicine, Stockholm, Sweden
| | - Oleg Sysoev
- Department of Computer and Information Sciences, Linkopings universitet, Linkoping, Sweden
| | | | - Lars Ake Persson
- Department of Disease Control, London School of Hygiene and Tropical Medicine, London, UK
| | - Shams E Arifeen
- Maternal and Child Health Division, International Centre for Diarrhoeal Disease Research, Dhaka, Bangladesh
| | - Ruchira T Naved
- Health System and Population Studies Division, International Centre for Diarrhoeal Disease Research, Dhaka, Bangladesh
| | - Anisur Rahman
- Maternal and Child Health Division, International Centre for Diarrhoeal Disease Research, Dhaka, Bangladesh
| | - Ashraful Islam Khan
- Infectious Diseases Division, International Centre for Diarrhoeal Disease Research, Dhaka, Bangladesh
| | - Katarina Selling
- Women's and Children's Health, Uppsala Universitet, Uppsala, Sweden
| |
Collapse
|
37
|
Dalrymple U, Cameron E, Arambepola R, Battle KE, Chestnutt EG, Keddie SH, Twohig KA, Pfeffer DA, Gibson HS, Weiss DJ, Bhatt S, Gething PW. The contribution of non-malarial febrile illness co-infections to Plasmodium falciparum case counts in health facilities in sub-Saharan Africa. Malar J 2019; 18:195. [PMID: 31186004 PMCID: PMC6560910 DOI: 10.1186/s12936-019-2830-y] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2019] [Accepted: 06/04/2019] [Indexed: 01/20/2023] Open
Abstract
Background The disease burden of Plasmodium falciparum malaria illness is generally estimated using one of two distinct approaches: either by transforming P. falciparum infection prevalence estimates into incidence estimates using conversion formulae; or through adjustment of counts of recorded P. falciparum-positive fever cases from clinics. Whilst both ostensibly seek to evaluate P. falciparum disease burden, there is an implicit and problematic difference in the metric being estimated. The first enumerates only symptomatic malaria cases, while the second enumerates all febrile episodes coincident with a P. falciparum infection, regardless of the fever’s underlying cause. Methods Here, a novel approach was used to triangulate community-based data sources capturing P. falciparum infection, fever, and care-seeking to estimate the fraction of P. falciparum-positive fevers amongst children under 5 years of age presenting at health facilities that are attributable to P. falciparum infection versus other non-malarial causes. A Bayesian hierarchical model was used to assign probabilities of malaria-attributable fever (MAF) and non-malarial febrile illness (NMFI) to children under five from a dataset of 41 surveys from 21 countries in sub-Saharan Africa conducted between 2006 and 2016. Using subsequent treatment-seeking outcomes, the proportion of MAF and NMFI amongst P. falciparum-positive febrile children presenting at public clinics was estimated. Results Across all surveyed malaria-positive febrile children who sought care at public clinics across 41 country-years in sub-Saharan Africa, P. falciparum infection was estimated to be the underlying cause of only 37.7% (31.1–45.4, 95% CrI) of P. falciparum-positive fevers, with significant geographical and temporal heterogeneity between surveys. Conclusions These findings highlight the complex nature of the P. falciparum burden amongst children under 5 years of age and indicate that for many children presenting at health clinics, a positive P. falciparum diagnosis and a fever does not necessarily mean P. falciparum is the underlying cause of the child’s symptoms, and thus other causes of illness should always be investigated, in addition to prescribing an effective anti-malarial medication. In addition to providing new large-scale estimates of malaria-attributable fever prevalence, the results presented here improve comparability between different methods for calculating P. falciparum disease burden, with significant implications for national and global estimation of malaria burden. Electronic supplementary material The online version of this article (10.1186/s12936-019-2830-y) contains supplementary material, which is available to authorized users.
Collapse
Affiliation(s)
- Ursula Dalrymple
- Big Data Institute, Li Ka Shing Centre for Health Information and Discovery, University of Oxford, Oxford, OX3 7LF, UK.,Department of Zoology, University of Oxford, Zoology Research and Administration Building, 11a Mansfield Road, Oxford, OX1 3SZ, UK
| | - Ewan Cameron
- Big Data Institute, Li Ka Shing Centre for Health Information and Discovery, University of Oxford, Oxford, OX3 7LF, UK
| | - Rohan Arambepola
- Big Data Institute, Li Ka Shing Centre for Health Information and Discovery, University of Oxford, Oxford, OX3 7LF, UK
| | - Katherine E Battle
- Big Data Institute, Li Ka Shing Centre for Health Information and Discovery, University of Oxford, Oxford, OX3 7LF, UK
| | - Elisabeth G Chestnutt
- Big Data Institute, Li Ka Shing Centre for Health Information and Discovery, University of Oxford, Oxford, OX3 7LF, UK
| | - Suzanne H Keddie
- Big Data Institute, Li Ka Shing Centre for Health Information and Discovery, University of Oxford, Oxford, OX3 7LF, UK
| | - Katherine A Twohig
- Big Data Institute, Li Ka Shing Centre for Health Information and Discovery, University of Oxford, Oxford, OX3 7LF, UK
| | - Daniel A Pfeffer
- Big Data Institute, Li Ka Shing Centre for Health Information and Discovery, University of Oxford, Oxford, OX3 7LF, UK.,Global and Tropical Health Division, Menzies School of Health Research and Charles Darwin University, Darwin, Australia
| | - Harry S Gibson
- Big Data Institute, Li Ka Shing Centre for Health Information and Discovery, University of Oxford, Oxford, OX3 7LF, UK
| | - Daniel J Weiss
- Big Data Institute, Li Ka Shing Centre for Health Information and Discovery, University of Oxford, Oxford, OX3 7LF, UK
| | - Samir Bhatt
- Big Data Institute, Li Ka Shing Centre for Health Information and Discovery, University of Oxford, Oxford, OX3 7LF, UK.,School of Public Health, Faculty of Medicine, Imperial College London, St Mary's Hospital, Norfolk Place, London, W2 1PG, UK
| | - Peter W Gething
- Big Data Institute, Li Ka Shing Centre for Health Information and Discovery, University of Oxford, Oxford, OX3 7LF, UK.
| |
Collapse
|
38
|
Bivins A, Beetsch N, Majuru B, Montgomery M, Sumner T, Brown J. Selecting Household Water Treatment Options on the Basis of World Health Organization Performance Testing Protocols. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2019; 53:5043-5051. [PMID: 30998325 DOI: 10.1021/acs.est.8b05682] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
The World Health Organization's International Scheme to Evaluate Household Water Treatment Technologies serves to benchmark microbiological performance of existing and novel technologies and processes for small-scale drinking water treatment according to a tiered system. There is widespread uncertainty around which tiers of performance are most appropriate for technology selection and recommendation in humanitarian response or for routine safe water programming. We used quantitative microbial risk assessment (QMRA) to evaluate attributable reductions in diarrheal disease burden associated with water treatment technologies meeting the three tiers of performance under this Scheme, across a range of conditions. According to mean estimates and under most modeling conditions, potential health gains attributable to microbiologically improved drinking water are realized at the middle tier of performance: "comprehensive protection: high pathogen removal (★★)" for each reference pathogen. The highest tier of performance may yield additional marginal health gains where untreated water is especially contaminated and where adherence is 100%. Our results highlight that health gains from improved efficacy of household water treatment technology remain marginal when adherence is less than 90%. While selection of water treatment technologies that meet minimum WHO efficacy recommendations for comprehensive protection against waterborne pathogens is critical, additional criteria for technology choice and recommendation should focus on potential for correct, consistent, and sustained use.
Collapse
Affiliation(s)
- Aaron Bivins
- School of Civil and Environmental Engineering , Georgia Institute of Technology , Atlanta , Georgia 30332 , United States
| | - Nikki Beetsch
- World Health Organization , Geneva 1211 , Switzerland
- NSF-International , Ann Arbor , Michigan 48105 , United States
| | | | | | - Trent Sumner
- School of Civil and Environmental Engineering , Georgia Institute of Technology , Atlanta , Georgia 30332 , United States
| | - Joe Brown
- School of Civil and Environmental Engineering , Georgia Institute of Technology , Atlanta , Georgia 30332 , United States
| |
Collapse
|
39
|
Bendabenda J, Patson N, Hallamaa L, Ashorn U, Dewey KG, Ashorn P, Maleta K. Does anthropometric status at 6 months predict the over-dispersion of malaria infections in children aged 6-18 months? A prospective cohort study. Malar J 2019; 18:143. [PMID: 31010435 PMCID: PMC6477714 DOI: 10.1186/s12936-019-2778-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2019] [Accepted: 04/13/2019] [Indexed: 12/02/2022] Open
Abstract
BACKGROUND In malaria-endemic settings, a small proportion of children suffer repeated malaria infections, contributing to most of the malaria cases, yet underlying factors are not fully understood. This study was aimed to determine whether undernutrition predicts this over-dispersion of malaria infections in children aged 6-18 months in settings of high malaria and undernutrition prevalence. METHODS Prospective cohort study, conducted in Mangochi, Malawi. Six-months-old infants were enrolled and had length-for-age z-scores (LAZ), weight-for-age z-scores (WAZ), and weight-for-length z-scores (WLZ) assessed. Data were collected for 'presumed', clinical, and rapid diagnostic test (RDT)-confirmed malaria until 18 months. Malaria microscopy was done at 6 and 18 months. Negative binomial regression was used for malaria incidence and modified Poisson regression for malaria prevalence. RESULTS Of the 2723 children enrolled, 2561 (94%) had anthropometry and malaria data. The mean (standard deviation [SD]) of LAZ, WAZ, and WLZ at 6 months were - 1.4 (1.1), - 0.7 (1.2), and 0.3 (1.1), respectively. The mean (SD) incidences of 'presumed', clinical, and RDT-confirmed malaria from 6 to 18 months were: 1.1 (1.6), 0.4 (0.8), and 1.3 (2.0) episodes/year, respectively. Prevalence of malaria parasitaemia was 4.8% at 6 months and 9.6% at 18 months. Higher WLZ at 6 months was associated with lower prevalence of malaria parasitaemia at 18 months (prevalence ratio [PR] = 0.80, 95% confidence interval [CI] 0.67 to 0.94, p = 0.007), but not with incidences of 'presumed' malaria (incidence rate ratio [IRR] = 0.97, 95% CI 0.92 to 1.02, p = 0.190), clinical malaria (IRR = 1.03, 95% CI 0.94 to 1.12, p = 0.571), RDT-confirmed malaria (IRR = 1.00, 95% CI 0.94 to 1.06, p = 0.950). LAZ and WAZ at 6 months were not associated with malaria outcomes. Household assets, maternal education, and food insecurity were significantly associated with malaria. There were significant variations in hospital-diagnosed malaria by study site. CONCLUSION In children aged 6-18 months living in malaria-endemic settings, LAZ, WAZ, and WLZ do not predict malaria incidence. However, WLZ may be associated with prevalence of malaria. Socio-economic and micro-geographic factors may explain the variations in malaria, but these require further study. Trial registration NCT00945698. Registered July 24, 2009, https://clinicaltrials.gov/ct2/show/NCT00945698 , NCT01239693. Registered Nov 11, 2010, https://clinicaltrials.gov/ct2/show/NCT01239693.
Collapse
Affiliation(s)
- Jaden Bendabenda
- Department of Public Health, School of Public Health, University of Malawi College of Medicine, Mahatma Gandhi Road, Private Bag 360, Blantyre 3, Malawi
- Faculty of Medicine and Life Sciences, Center for Child Health Research, University of Tampere, Tampere, Finland
| | - Noel Patson
- Department of Public Health, School of Public Health, University of Malawi College of Medicine, Mahatma Gandhi Road, Private Bag 360, Blantyre 3, Malawi
- School of Public Health, University of the Witwatersrand, Johannesburg, South Africa
| | - Lotta Hallamaa
- Faculty of Medicine and Life Sciences, Center for Child Health Research, University of Tampere, Tampere, Finland
| | - Ulla Ashorn
- Faculty of Medicine and Life Sciences, Center for Child Health Research, University of Tampere, Tampere, Finland
| | - Kathryn G Dewey
- Department of Nutrition, University of California, Davis, Davis, CA, USA
| | - Per Ashorn
- Faculty of Medicine and Life Sciences, Center for Child Health Research, University of Tampere, Tampere, Finland
| | - Kenneth Maleta
- Department of Public Health, School of Public Health, University of Malawi College of Medicine, Mahatma Gandhi Road, Private Bag 360, Blantyre 3, Malawi.
| |
Collapse
|
40
|
Mertens A, Balakrishnan K, Ramaswamy P, Rajkumar P, Ramaprabha P, Durairaj N, Hubbard AE, Khush R, Colford JM, Arnold BF. Associations between High Temperature, Heavy Rainfall, and Diarrhea among Young Children in Rural Tamil Nadu, India: A Prospective Cohort Study. ENVIRONMENTAL HEALTH PERSPECTIVES 2019; 127:47004. [PMID: 30986088 PMCID: PMC6785227 DOI: 10.1289/ehp3711] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/29/2018] [Revised: 02/21/2019] [Accepted: 03/19/2019] [Indexed: 05/19/2023]
Abstract
BACKGROUND The effects of weather on diarrhea could influence the health impacts of climate change. Children have the highest diarrhea incidence, especially in India, where many lack safe water and sanitation. OBJECTIVES In a prospective cohort of 1,284 children under 5 y of age from 900 households across 25 villages in rural Tamil Nadu, India, we examined whether high temperature and heavy rainfall was associated with increased all-cause diarrhea and water contamination. METHODS Seven-day prevalence of diarrhea was assessed monthly for up to 12 visits from January 2008 to April 2009, and hydrogen sulfide ([Formula: see text]) presence in drinking water, a fecal contamination indicator, was tested in a subset of households. We estimated associations between temperature and rainfall exposures and diarrhea and [Formula: see text] using binomial regressions, adjusting for potential confounders, random effects for village, and autoregressive-1 error terms for study week. RESULTS There were 259 cases of diarrhea. The prevalence of diarrhea during the 7 d before visits was 2.95 times higher (95% CI: 1.99, 4.39) when mean temperature in the week before the 7-d recall was in the hottest versus the coolest quartile of weekly mean temperature during 1 December 2007 to 15 April 2009. Diarrhea prevalence was 1.50 times higher when the 3 weeks before the diarrhea recall period included [Formula: see text] (vs. 0 d) with rainfall of [Formula: see text] (95% CI: 1.12, 2.02), and 2.60 times higher (95% CI: 1.55, 4.36) for heavy rain weeks following a 60-d dry period. The [Formula: see text] prevalence in household water was not associated with heavy rain prior to sample collection. CONCLUSIONS The results suggest that, in rural Tamil Nadu, heavy rainfall may wash pathogens that accumulate during dry weather into child contact. Higher temperatures were positively associated with diarrhea 1-3 weeks later. Our findings suggest that diarrhea morbidity could worsen under climate change without interventions to reduce enteric pathogen transmission through multiple pathways. https://doi.org/10.1289/EHP3711.
Collapse
Affiliation(s)
- Andrew Mertens
- 1 School of Public Health, University of California , Berkeley, California, USA
| | - Kalpana Balakrishnan
- 2 Department of Environmental and Health Engineering, Sri Ramachandra Medical College and Research Institute , Porur, Chennai, Tamil Nadu, India
| | - Padmavathi Ramaswamy
- 2 Department of Environmental and Health Engineering, Sri Ramachandra Medical College and Research Institute , Porur, Chennai, Tamil Nadu, India
| | - Paramasivan Rajkumar
- 2 Department of Environmental and Health Engineering, Sri Ramachandra Medical College and Research Institute , Porur, Chennai, Tamil Nadu, India
| | - Prabhakar Ramaprabha
- 2 Department of Environmental and Health Engineering, Sri Ramachandra Medical College and Research Institute , Porur, Chennai, Tamil Nadu, India
| | - Natesan Durairaj
- 2 Department of Environmental and Health Engineering, Sri Ramachandra Medical College and Research Institute , Porur, Chennai, Tamil Nadu, India
| | - Alan E Hubbard
- 1 School of Public Health, University of California , Berkeley, California, USA
| | - Ranjiv Khush
- 3 Aquaya Institute , San Francisco, California, USA
| | - John M Colford
- 1 School of Public Health, University of California , Berkeley, California, USA
| | - Benjamin F Arnold
- 1 School of Public Health, University of California , Berkeley, California, USA
| |
Collapse
|
41
|
Berendes D, Andujar A, Barrios LC, Hill V. Associations Among School Absenteeism, Gastrointestinal and Respiratory Illness, and Income - United States, 2010-2016. MMWR-MORBIDITY AND MORTALITY WEEKLY REPORT 2019; 68:209-213. [PMID: 30845117 PMCID: PMC6421969 DOI: 10.15585/mmwr.mm6809a1] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Abstract
Control of communicable diseases in children, including respiratory and diarrheal illnesses that affect U.S. school-aged children, might require public health preventive efforts both in the home and at school, a primary setting for transmission. National Health Interview Survey (NHIS) data on school absenteeism and gastrointestinal illness in the United States during 2010-2016 were analyzed to identify associations among income, illness, and absenteeism. Prevalence of gastrointestinal and respiratory illnesses in the 2 weeks preceding the survey increased as income decreased. Although the likelihood of missing any school days during the past year decreased with reduced income, among children missing school, those from low-income households missed more days of school than did children from higher income households. Although the reason for absenteeism cannot be ascertained from this analysis, these data underscore the importance of preventive measures, such as hand hygiene promotion and education, and the opportunity for both homes and schools to serve as an important point for implementation of public health preventive measures, including hand hygiene practice and education.
Collapse
|
42
|
Diarrhoea, enteric pathogen detection and nutritional indicators among controls in the Global Enteric Multicenter Study, Kenya site: an opportunity to understand reference populations in case-control studies of diarrhoea. Epidemiol Infect 2018; 147:e44. [PMID: 30428944 PMCID: PMC6518569 DOI: 10.1017/s0950268818002972] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Given the challenges in accurately identifying unexposed controls in case–control studies of diarrhoea, we examined diarrhoea incidence, subclinical enteric infections and growth stunting within a reference population in the Global Enteric Multicenter Study, Kenya site. Within ‘control’ children (0–59 months old without diarrhoea in the 7 days before enrolment, n = 2384), we examined surveys at enrolment and 60-day follow-up, stool at enrolment and a 14-day post-enrolment memory aid for diarrhoea incidence. At enrolment, 19% of controls had ⩾1 enteric pathogen associated with moderate-to-severe diarrhoea (‘MSD pathogens’) in stool; following enrolment, many reported diarrhoea (27% in 7 days, 39% in 14 days). Controls with and without reported diarrhoea had similar carriage of MSD pathogens at enrolment; however, controls reporting diarrhoea were more likely to report visiting a health facility for diarrhoea (27% vs. 7%) or fever (23% vs. 16%) at follow-up than controls without diarrhoea. Odds of stunting differed by both MSD and ‘any’ (including non-MSD pathogens) enteric pathogen carriage, but not diarrhoea, suggesting control classification may warrant modification when assessing long-term outcomes. High diarrhoea incidence following enrolment and prevalent carriage of enteric pathogens have implications for sequelae associated with subclinical enteric infections and for design and interpretation of case–control studies examining diarrhoea.
Collapse
|
43
|
Knee J, Sumner T, Adriano Z, Berendes D, de Bruijn E, Schmidt WP, Nalá R, Cumming O, Brown J. Risk factors for childhood enteric infection in urban Maputo, Mozambique: A cross-sectional study. PLoS Negl Trop Dis 2018; 12:e0006956. [PMID: 30419034 PMCID: PMC6258421 DOI: 10.1371/journal.pntd.0006956] [Citation(s) in RCA: 58] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2018] [Revised: 11/26/2018] [Accepted: 10/29/2018] [Indexed: 01/07/2023] Open
Abstract
BACKGROUND Enteric infections are common where public health infrastructure is lacking. This study assesses risk factors for a range of enteric infections among children living in low-income, unplanned communities of urban Maputo, Mozambique. METHODS & FINDINGS We conducted a cross-sectional survey in 17 neighborhoods of Maputo to assess the prevalence of reported diarrheal illness and laboratory-confirmed enteric infections in children. We collected stool from children aged 1-48 months, independent of reported symptoms, for molecular detection of 15 common enteric pathogens by multiplex RT-PCR. We also collected survey and observational data related to water, sanitation, and hygiene (WASH) characteristics; other environmental factors; and social, economic, and demographic covariates. We analyzed stool from 759 children living in 425 household clusters (compounds) representing a range of environmental conditions. We detected ≥1 enteric pathogens in stool from most children (86%, 95% confidence interval (CI): 84-89%) though diarrheal symptoms were only reported for 16% (95% CI: 13-19%) of children with enteric infections and 13% (95% CI: 11-15%) of all children. Prevalence of any enteric infection was positively associated with age and ranged from 71% (95% CI: 64-77%) in children 1-11 months to 96% (95% CI: 93-98%) in children 24-48 months. We found poor sanitary conditions, such as presence of feces or soiled diapers around the compound, to be associated with higher risk of protozoan infections. Certain latrine features, including drop-hole covers and latrine walls, and presence of a water tap on the compound grounds were associated with a lower risk of bacterial and protozoan infections. Any breastfeeding was also associated with reduced risk of infection. CONCLUSIONS We found a high prevalence of enteric infections, primarily among children without diarrhea, and weak associations between bacterial and protozoan infections and environmental risk factors including WASH. Findings suggest that environmental health interventions to limit infections would need to be transformative given the high prevalence of enteric pathogen shedding and poor sanitary conditions observed. TRIAL REGISTRATION ClinicalTrials.gov NCT02362932.
Collapse
Affiliation(s)
- Jackie Knee
- School of Civil and Environmental Engineering, Georgia Institute of Technology, Atlanta, Georgia, United States of America
| | - Trent Sumner
- School of Civil and Environmental Engineering, Georgia Institute of Technology, Atlanta, Georgia, United States of America
| | - Zaida Adriano
- We Consult, Maputo, Mozambique
- Departamento de Geografia, Universidade Eduardo Mondlane, Maputo, Mozambique
| | - David Berendes
- Waterborne Disease Prevention Branch, Division of Foodborne, Waterborne, and Environmental Diseases, National Center for Emerging Zoonotic and Infectious Diseases, Centers for Disease Control and Prevention, Atlanta, Georgia, United States of America
| | | | - Wolf-Peter Schmidt
- Department of Disease Control, London School of Hygiene and Tropical Medicine, London, United Kingdom
| | - Rassul Nalá
- Ministério da Saúde, Instituto Nacional de Saúde Maputo, Maputo, Republic of Mozambique
| | - Oliver Cumming
- Department of Disease Control, London School of Hygiene and Tropical Medicine, London, United Kingdom
| | - Joe Brown
- School of Civil and Environmental Engineering, Georgia Institute of Technology, Atlanta, Georgia, United States of America
- * E-mail:
| |
Collapse
|
44
|
Pickering AJ, Ercumen A, Arnold BF, Kwong LH, Parvez SM, Alam M, Sen D, Islam S, Kullmann C, Chase C, Ahmed R, Unicomb L, Colford JM, Luby SP. Fecal Indicator Bacteria along Multiple Environmental Transmission Pathways (Water, Hands, Food, Soil, Flies) and Subsequent Child Diarrhea in Rural Bangladesh. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2018; 52:7928-7936. [PMID: 29902374 PMCID: PMC7705120 DOI: 10.1021/acs.est.8b00928] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/16/2018] [Revised: 06/09/2018] [Accepted: 06/14/2018] [Indexed: 05/19/2023]
Abstract
Enteric pathogens can be transmitted through multiple environmental pathways, yet little is known about the relative contribution of each pathway to diarrhea risk among children. We aimed to identify fecal transmission pathways in the household environment associated with prospectively measured child diarrhea in rural Bangladesh. We measured the presence and levels of Escherichia coli in tube wells, stored drinking water, pond water, child hand rinses, courtyard soil, flies, and food in 1843 households. Gastrointestinal symptoms among children ages 0-60 months were recorded concurrently at the time of environmental sample collection and again a median of 6 days later. Incident diarrhea (3 or more loose stools in a 24-h period) was positively associated with the concentration of E. coli on child hands measured on the first visit (incidence rate ratio [IRR] = 1.23, 95% CI 1.06, 1.43 for a log10 increase), while other pathways were not associated. In cross-sectional analysis, there were no associations between concurrently measured environmental contamination and diarrhea. Our findings suggest higher levels of E. coli on child hands are strongly associated with subsequent diarrheal illness rates among children in rural Bangladesh.
Collapse
Affiliation(s)
- Amy J. Pickering
- Woods Institute for the Environment, Stanford University, Stanford, California United States
- Civil and Environmental Engineering, Tufts University, Science and Engineering Complex, 200 College Avenue, Medford, Massachusetts United States
- Corresponding Author E-mail: . Phone: 617-627-5163
| | - Ayse Ercumen
- Division of Epidemiology, School of Public Health, University of California, Berkeley, California United States
- Department of Forestry and Environmental Resources, North Carolina State University, Raleigh, North Carolina United States
| | - Benjamin F. Arnold
- Division of Epidemiology, School of Public Health, University of California, Berkeley, California United States
| | - Laura H. Kwong
- Woods Institute for the Environment, Stanford University, Stanford, California United States
- Civil and Environmental Engineering, Stanford University, Stanford, California United States
| | | | - Mahfuja Alam
- Infectious Disease Division, icddr,b Dhaka 1000, Bangladesh
| | - Debashis Sen
- Infectious Disease Division, icddr,b Dhaka 1000, Bangladesh
| | - Sharmin Islam
- Infectious Disease Division, icddr,b Dhaka 1000, Bangladesh
| | - Craig Kullmann
- Water Global Practice, World Bank, Washington, D.C. 20433, United States
| | - Claire Chase
- Water Global Practice, World Bank, Washington, D.C. 20433, United States
| | - Rokeya Ahmed
- Water Global Practice, World Bank, Dhaka 1207, Bangladesh
| | - Leanne Unicomb
- Infectious Disease Division, icddr,b Dhaka 1000, Bangladesh
| | - John M. Colford
- Division of Epidemiology, School of Public Health, University of California, Berkeley, California United States
| | - Stephen P. Luby
- Woods Institute for the Environment, Stanford University, Stanford, California United States
| |
Collapse
|
45
|
Trent M, Dreibelbis R, Bir A, Tripathi SN, Labhasetwar P, Nagarnaik P, Loo A, Bain R, Jeuland M, Brown J. Access to Household Water Quality Information Leads to Safer Water: A Cluster Randomized Controlled Trial in india. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2018; 52:5319-5329. [PMID: 29641184 DOI: 10.1021/acs.est.8b00035] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Household-specific feedback on the microbiological safety of drinking water may result in changes to water management practices that reduce exposure risks. We conducted a randomized, controlled trial in India to determine if information on household drinking water quality could change behavior and improve microbiological quality as indicated by Escherichia coli counts. We randomly assigned 589 participating households to one of three arms: (1) a messaging-only arm receiving messaging on safe water management ( n = 237); (2) a standard testing arm receiving the same messaging plus laboratory E. coli testing results specific to that household's drinking water ( n = 173); and (3) a test kit arm receiving messaging plus low-cost E. coli tests that could be used at the household's discretion ( n = 179). Self-reported water treatment increased significantly in both the standard testing arm and the test kit arm between baseline and follow-up one month later. Mean log10 E. coli counts per 100 mL in household stored drinking water increased in the messaging-only arm from 1.42 to 1.87, while decreasing in the standard testing arm (1.38 to 0.89, 65% relative reduction) and the test kit arm (1.08 to 0.65, 76% relative reduction). Findings indicate that household-specific water quality information can improve both behaviors and drinking water quality.
Collapse
Affiliation(s)
- Mallory Trent
- Johns Hopkins University , Baltimore , Maryland United States
| | - Robert Dreibelbis
- London School of Hygiene and Tropical Medicine , 44 Keppel St , London WC1E 7HT , U.K
| | - Arjun Bir
- School of Civil and Environmental Engineering , Georgia Institute of Technology , 790 Atlantic Drive , Atlanta , Georgia 30332 , United States
| | - Sachchida Nand Tripathi
- Department of Civil Engineering & Centre for Environmental Science and Engineering , Indian Institute of Technology - Kanpur , India
| | - Pawan Labhasetwar
- National Environmental Engineering Research Institute (NEERI) , Nagpur , India
| | - Pranav Nagarnaik
- National Environmental Engineering Research Institute (NEERI) , Nagpur , India
| | - Andrew Loo
- School of Civil and Environmental Engineering , Georgia Institute of Technology , 790 Atlantic Drive , Atlanta , Georgia 30332 , United States
| | | | - Marc Jeuland
- Sanford School of Public Policy and Duke Global Health Institute , Duke University , Durham , North Carolina United States
- Institute of Water Policy; National University of Singapore , Singapore
| | - Joe Brown
- School of Civil and Environmental Engineering , Georgia Institute of Technology , 790 Atlantic Drive , Atlanta , Georgia 30332 , United States
| |
Collapse
|
46
|
Bauza V, Byrne DM, Trimmer JT, Lardizabal A, Atiim P, Asigbee MAK, Guest JS. Child soil ingestion in rural Ghana - frequency, caregiver perceptions, relationship with household floor material and associations with child diarrhoea. Trop Med Int Health 2018. [PMID: 29537690 DOI: 10.1111/tmi.13050] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
OBJECTIVES The objectives of this work were to evaluate (i) the prevalence and frequency of caregiver-reported soil ingestion by children, (ii) whether household flooring material in the bedroom (earth vs. concrete) affected caregiver-reported soil ingestion, (iii) whether caregiver-reported soil ingestion was associated with caregiver-reported diarrhoea and (iv) caregivers' perceptions of their children ingesting soil. METHODS We conducted 309 household surveys in northern Ghana, including 529 children under five (249 children aged 6-36 months), and measured faecal contamination in soil from 31 households. RESULTS Among all children, 15% were reported to have directly ingested soil in the past week, including 28% of children aged 6-36 months. Among children reported to have ingested soil, the median frequency was 14 times in the past week, and the median amount of soil ingested each time was half a handful. There was no association between household floor material and whether the caregiver observed a child directly ingesting soil. After adjusting for household floor material and other potential confounding variables, caregiver-reported soil ingestion was associated with caregiver-reported diarrhoea for children under five [adjusted odds ratio (adj. OR) = 3.13, 95% confidence interval (CI) 2.76-3.55] and children aged 6-36 months (adj. OR = 2.61, 95% CI 2.01-3.39). Approximately 83% of caregivers whose children ingested soil reported they thought it was unsafe and were more likely to report stopping their child from ingesting soil, but these responses did not affect the quantity of soil ingested. CONCLUSIONS Our results suggest direct soil ingestion is associated with diarrhoea independent of household floor material, and separate interventions may be necessary to prevent exploratory soil ingestion.
Collapse
Affiliation(s)
- Valerie Bauza
- Department of Civil and Environmental Engineering, University of Illinois at Urbana-Champaign, Urbana, IL, USA
| | - Diana M Byrne
- Department of Civil and Environmental Engineering, University of Illinois at Urbana-Champaign, Urbana, IL, USA
| | - John T Trimmer
- Department of Civil and Environmental Engineering, University of Illinois at Urbana-Champaign, Urbana, IL, USA
| | - Amanda Lardizabal
- Department of Civil and Environmental Engineering, University of Illinois at Urbana-Champaign, Urbana, IL, USA
| | | | | | - Jeremy S Guest
- Department of Civil and Environmental Engineering, University of Illinois at Urbana-Champaign, Urbana, IL, USA
| |
Collapse
|
47
|
Roy I, Kuate Defo B. [Not Available]. CANADIAN JOURNAL OF PUBLIC HEALTH = REVUE CANADIENNE DE SANTE PUBLIQUE 2018; 108:e586-e597. [PMID: 29356668 PMCID: PMC6972112 DOI: 10.17269/cjph.108.5921] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/14/2016] [Revised: 11/17/2017] [Accepted: 08/25/2017] [Indexed: 06/07/2023]
Abstract
OBJECTIFS Évaluer le rôle des commodités familiales dans l'occurrence de la diarrhée chez les enfants de moins de 5 ans en Haïti, selon leur type (eau potable, toilettes et réfrigérateur) et leur nombre.MÉTHODE : Nous avons mis en commun les données de quatre Enquêtes démographiques et de santé réalisées en Haïti entre 1994-1995 et 2012. Nous avons retenu un échantillon de 14 481 enfants de 1-59 mois. Nous avons évalué le rôle des commodités familiales dans l'occurrence de la diarrhée selon le groupe d'âge d'enfants à risque (1-5; 6-11; 12-23; 24-59 mois), au moyen des modèles de régression logistique.RÉSULTATS : La prévalence de la diarrhée chez les enfants de 1-59 mois en Haïti est estimée à 29,31 %. Elle atteint 42,14 % chez les enfants de 6-11 mois. Elle est plus faible pour les enfants dont les familles ont accès à une eau potable améliorée, des toilettes améliorées ou un réfrigérateur. Elle est d'autant plus faible que les familles possèdent au moins deux commodités simultanément. Nous ne trouvons pas de différences significatives dans l'occurrence de la diarrhée infanto-juvénile selon l'accès à l'eau potable (p > 0,10). Prenant en compte l'effet de période, une occurrence réduite de la diarrhée est significativement associée aux toilettes améliorées chez les enfants de 24-59 mois (RC : 0,62; p < 0,05) et au réfrigérateur chez les 6-11 mois (RC : 0,11; p < 0,05). Pour le nombre de commodités, seuls les 24-59 mois ayant au moins deux commodités ont une occurrence de la diarrhée statistiquement inférieure de celle des plus défavorisés (RC : 0,45; p < 0,05). CONCLUSION Augmenter l'accès aux commodités familiales et leur nombre par ménage demeure essentiel dans la lutte contre la diarrhée en Haïti. Une intervention intégrée serait donc à préconiser dans l'environnement sociosanitaire haïtien.
Collapse
Affiliation(s)
- Isabelle Roy
- Programme en Nutrition et Santé Transnationales, Intercontinentales, et au Canada (PRONUSTIC), Université de Montréal, Montréal (Québec); Institut de Recherche en Santé Publique de l'Université de Montréal (IRSPUM), Montréal (Québec).
| | | |
Collapse
|
48
|
Kallioinen M, Ekström E, Khan AI, Lindström E, Persson LÅ, Rahman A, Selling KE. Prenatal early food and multiple micronutrient supplementation trial reduced infant mortality in Bangladesh, but did not influence morbidity. Acta Paediatr 2017; 106:1979-1986. [PMID: 28779492 DOI: 10.1111/apa.14009] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/06/2017] [Revised: 06/11/2017] [Accepted: 08/01/2017] [Indexed: 01/28/2023]
Abstract
AIM A previous maternal and infant nutrition intervention in rural Matlab, Bangladesh, showed that prenatal nutrient supplements improved child survival, but had no effect on size at birth. This secondary analysis examined whether prenatal multiple micronutrient supplements (MMS), on their own or combined with an early invitation to receive prenatal food supplements, affected child morbidity. METHODS This randomised trial enrolled 4436 pregnant women from November 2001 to October 2003 and allocated them to early or standard invitations to food supplements, in the ninth and 20th weeks of pregnancy, respectively, and supplements of either the standard 60 mg iron with 400 μg folic acid, 30 mg iron with 400 μg folic acid or MMS. Quasi-Poisson regression was used to analyse morbidity. RESULTS There were 3560 single live births and 3516 had morbidity data. The incidence rates of fever, diarrhoea and acute lower respiratory tract infection were 15.3, 3.6 and 2.3 episodes per person-year, respectively. The separate or combined interventions had no effect on morbidity up to 24 months. CONCLUSION Early invitations to prenatal food supplements or prenatal MMS had no effect on common infections in rural Bangladesh, suggesting that earlier findings on improved child survival were not mediated by an effect on child morbidity.
Collapse
Affiliation(s)
- Maija Kallioinen
- International Maternal and Child Health Department of Women's and Children's Health Uppsala University Uppsala Sweden
| | - Eva‐Charlotte Ekström
- International Maternal and Child Health Department of Women's and Children's Health Uppsala University Uppsala Sweden
| | - Ashraful Islam Khan
- International Centre for Diarrhoeal Disease Research, Bangladesh (icddr,b) Dhaka Bangladesh
| | - Emma Lindström
- International Maternal and Child Health Department of Women's and Children's Health Uppsala University Uppsala Sweden
| | - Lars Åke Persson
- International Maternal and Child Health Department of Women's and Children's Health Uppsala University Uppsala Sweden
| | - Anisur Rahman
- International Centre for Diarrhoeal Disease Research, Bangladesh (icddr,b) Dhaka Bangladesh
| | - Katarina Ekholm Selling
- International Maternal and Child Health Department of Women's and Children's Health Uppsala University Uppsala Sweden
| |
Collapse
|
49
|
Islam M, Ercumen A, Naser AM, Unicomb L, Rahman M, Arnold BF, Colford JM, Luby SP. Effectiveness of the Hydrogen Sulfide Test as a Water Quality Indicator for Diarrhea Risk in Rural Bangladesh. Am J Trop Med Hyg 2017; 97:1867-1871. [PMID: 29141754 PMCID: PMC5805062 DOI: 10.4269/ajtmh.17-0387] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
Abstract
Microbiological water quality is usually assessed by the identification of Escherichia coli (E. coli), a fecal indicator. The hydrogen sulfide (H2S) test is an inexpensive, easy-to-use, and portable alternative field-based water quality test. Our study evaluated the H2S test’s effectiveness as a water quality indicator for diarrhea risk. Field workers collected stored drinking water samples for H2S analysis and detection of E. coli by membrane filtration and measured caregiver-reported diarrhea among children < 5 years in the same households 1 month later. We assessed the association between the H2S test (incubated for 24 hours and 48 hours) and diarrhea prevalence, with 2-day and 7-day symptom recall periods (N = 1,348). We determined the sensitivity, specificity, and positive and negative predictive value (PPV, NPV) of the H2S test compared with E. coli (N = 525). Controlling for potentially confounding covariates, H2S-positive water (at 24 or 48 hours) was not associated with 2-day diarrhea prevalence (24-hour prevalence ratio [PR] = 1.03, 95% confidence interval [CI]: 0.63–1.69; 48-hour PR = 0.89, 95% CI: 0.58–1.38) or 7-day diarrhea prevalence (24-hour PR = 1.17, 95% CI: 0.76–1.78; 48-hour PR = 1.21, 95% CI: 0.81–1.80). The sensitivity, PPV, and NPV of the H2S test was significantly higher when the H2S test was incubated for 48 versus 24 hours whereas specificity showed the opposite trend. H2S test sensitivity, PPV, and NPV increased with increasing E. coli levels, consistent with previous evidence that the H2S test is a useful water quality tool in high-contamination settings. However, our results suggest that the H2S test is not an effective indicator for waterborne diarrhea.
Collapse
Affiliation(s)
- Mahfuza Islam
- Environmental Intervention Unit, Enteric and Respiratory Infections Program, Infectious Disease Division, International Centre for Diarrheal Disease Research, Bangladesh (icddr,b)
| | - Ayse Ercumen
- Division of Epidemiology, School of Public Health, University of California, Berkeley, California
| | - Abu Mohd Naser
- Department of Environmental Health Sciences. Rollins School of Public Health, Emory University, Atlanta, Georgia
| | - Leanne Unicomb
- Environmental Intervention Unit, Enteric and Respiratory Infections Program, Infectious Disease Division, International Centre for Diarrheal Disease Research, Bangladesh (icddr,b)
| | - Mahbubur Rahman
- Environmental Intervention Unit, Enteric and Respiratory Infections Program, Infectious Disease Division, International Centre for Diarrheal Disease Research, Bangladesh (icddr,b)
| | - Benjamin F Arnold
- Division of Epidemiology, School of Public Health, University of California, Berkeley, California
| | - John M Colford
- Division of Epidemiology, School of Public Health, University of California, Berkeley, California
| | - Stephen P Luby
- Woods Institute for the Environment, Stanford University, Stanford, California
| |
Collapse
|
50
|
Contreras JD, Meza R, Siebe C, Rodríguez-Dozal S, López-Vidal YA, Castillo-Rojas G, Amieva RI, Solano-Gálvez SG, Mazari-Hiriart M, Silva-Magaña MA, Vázquez-Salvador N, Rosas Pérez I, Martínez Romero L, Salinas Cortez E, Riojas-Rodríguez H, Eisenberg JNS. Health risks from exposure to untreated wastewater used for irrigation in the Mezquital Valley, Mexico: A 25-year update. WATER RESEARCH 2017; 123:834-850. [PMID: 28755783 DOI: 10.1016/j.watres.2017.06.058] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/17/2017] [Accepted: 06/21/2017] [Indexed: 05/06/2023]
Abstract
Wastewater reuse for agriculture is common worldwide; wastewater treatment, however, is rare in many countries, leading to high potential for exposure to harmful pathogens. Mexico City, one of the largest producers of untreated wastewater for agricultural use worldwide, was the site of key epidemiologic studies conducted in the 1990s. We both reviewed the literature on and conducted a cross-sectional study of diarrheal risk and wastewater contamination to provide an updated assessment of health risks and to inform an upcoming update of the 2006 WHO guidelines on wastewater reuse. We surveyed communities in the Mezquital Valley that use wastewater for irrigation and communities that use well water to compare the prevalence of self-reported diarrheal disease in children under five years old. Wastewater, well water, household environmental samples, and stool samples were collected and analyzed. Communities exposed to wastewater had a higher one-week prevalence of diarrhea (10%) compared to unexposed communities (5%). This association remained in an adjusted modified Poisson regression model (PR = 2.31, 95% CI 1.00, 5.31), but not when limited to households engaged in agriculture. Water quality indicators document differences between irrigation water from the two community groups. These results are in agreement with 25 population studies identified by our review that were conducted since or not included in the 2006 WHO guidelines and show consistent negative impacts of wastewater exposure on health. While overall diarrheal prevalence has declined when compared to studies conducted over 25 years ago in the same region, the association of diarrheal disease and wastewater exposure has remained and possibly increased. With rising urbanization worldwide, attention to these risks and wastewater treatment is becoming increasingly important.
Collapse
Affiliation(s)
- Jesse D Contreras
- Department of Epidemiology, University of Michigan School of Public Health, 1415 Washington Heights, Ann Arbor, MI, 48105, United States
| | - Rafael Meza
- Department of Epidemiology, University of Michigan School of Public Health, 1415 Washington Heights, Ann Arbor, MI, 48105, United States.
| | - Christina Siebe
- Instituto de Geología, Universidad Nacional Autónoma de México, Circuito de la Investigación, Ciudad Universitaria, Ciudad de México, Distrito Federal, 02376, Mexico
| | - Sandra Rodríguez-Dozal
- Dirección de Salud Ambiental, Instituto Nacional de Salud Pública, Universidad No. 655 Colonia Santa María Ahuacatitlán, Cerrada Los Pinos y Caminera, Cuernavaca, Morelos, 62100, Mexico
| | - Yolanda A López-Vidal
- Facultad de Medicina, Universidad Nacional Autónoma de MéxicoCircuito Interior, Avenida Universidad 3000, Ciudad Universitaria, Ciudad de México, Distrito Federal, 04510, Mexico
| | - Gonzalo Castillo-Rojas
- Facultad de Medicina, Universidad Nacional Autónoma de MéxicoCircuito Interior, Avenida Universidad 3000, Ciudad Universitaria, Ciudad de México, Distrito Federal, 04510, Mexico
| | - Rosa I Amieva
- Facultad de Medicina, Universidad Nacional Autónoma de MéxicoCircuito Interior, Avenida Universidad 3000, Ciudad Universitaria, Ciudad de México, Distrito Federal, 04510, Mexico
| | - Sandra G Solano-Gálvez
- Facultad de Medicina, Universidad Nacional Autónoma de MéxicoCircuito Interior, Avenida Universidad 3000, Ciudad Universitaria, Ciudad de México, Distrito Federal, 04510, Mexico
| | - Marisa Mazari-Hiriart
- Instituto de Ecología, Universidad Nacional Autónoma de MéxicoCircuito Exterior S/N Anexo Jardín Botánico Exterior, Ciudad Universitaria, Ciudad de México, Distrito Federal, 04500, Mexico
| | - Miguel A Silva-Magaña
- Instituto de Ecología, Universidad Nacional Autónoma de MéxicoCircuito Exterior S/N Anexo Jardín Botánico Exterior, Ciudad Universitaria, Ciudad de México, Distrito Federal, 04500, Mexico
| | - Nallely Vázquez-Salvador
- Instituto de Ecología, Universidad Nacional Autónoma de MéxicoCircuito Exterior S/N Anexo Jardín Botánico Exterior, Ciudad Universitaria, Ciudad de México, Distrito Federal, 04500, Mexico
| | - Irma Rosas Pérez
- Centro de Ciencias de la Atmósfera, Universidad Nacional Autónoma de México, Circuito Exterior S/N, Ciudad Universitaria, Ciudad de México, Distrito Federal, 04510, Mexico
| | - Leticia Martínez Romero
- Centro de Ciencias de la Atmósfera, Universidad Nacional Autónoma de México, Circuito Exterior S/N, Ciudad Universitaria, Ciudad de México, Distrito Federal, 04510, Mexico
| | - Eva Salinas Cortez
- Centro de Ciencias de la Atmósfera, Universidad Nacional Autónoma de México, Circuito Exterior S/N, Ciudad Universitaria, Ciudad de México, Distrito Federal, 04510, Mexico
| | - Horacio Riojas-Rodríguez
- Dirección de Salud Ambiental, Instituto Nacional de Salud Pública, Universidad No. 655 Colonia Santa María Ahuacatitlán, Cerrada Los Pinos y Caminera, Cuernavaca, Morelos, 62100, Mexico
| | - Joseph N S Eisenberg
- Department of Epidemiology, University of Michigan School of Public Health, 1415 Washington Heights, Ann Arbor, MI, 48105, United States.
| |
Collapse
|